For the same current density, coefficients of electro-osmotic drag, back diffusion and hydraulic permeation with water content in the membrane increased gradually along the gas flow direction, while net water transport coefficient and proton transport resistance decreased as operating pressure increased; [JP2]at the same time electro-osmotic drag, back diffusion, hydraulic permeation and net water transport coefficients and water content in the membrane increased rapidly, while proton transport resistance decreased, which improved the performance of PEM fuel cells.
分析模拟结果发现，当电流密度相同时，沿气体流动方向，质子交换膜中水的电渗拉力系数、反扩散系数和水力渗透系数逐步增大，而水的净迁移系数逐步减小；同时，质子交换膜的含水量增加，质子传递阻力逐步下降；增大电池的操作压力，电渗拉力系数、反扩散系数、水力渗透系数、水净迁移系数和质子膜的含水量增加，而质子传递阻力下降，使燃料电池的性能得到了提高。
The results show that under the condition of water stress, the stomatal resistance increased, and the chlorophyll content and the net photosynthetic rates decreased.
结果表明，水分胁迫后，气孔阻力增加，叶绿素含量和净光合速率显著下降。
Electronic equipment categories: two core, three core insulated wire conduction test machine, an integrated plug-line tester, polarity tester, full-featured integrated precision wire tester, analog/digital storage oscilloscope, signal generator, the standard signal source, frequency dollars, Millivoltmeter distortion device, Miriam, LCR digital electric bridge, voltage tester, insulation resistance tester, grounding resistance tester, leakage current tester, electronic load, electric parameter measuring instrument, digital power meter, parameter measuring instrument transformers, transformer automatic testing system, transformers ring than phase tester, electrical safety parameter tester, variable frequency power supply, power supply, high-frequency shielding net room, temperature and humidity table, multimeter, power meter, tachometer, anemometer, coating thickness, coating thickness, vibration measuring instrument, the Composite test machines (motors, fans, hair dryer, lamps, fruit juice machine) and so on.
二芯、三芯线材绝缘导通测试机、插头线综合测试机、极性测试仪、全功能精密线材综合测试机、模拟/数字存储示波器、信号发生器、标准信号源、频率计、毫伏表、失真仪、抖晃仪、LCR数字电桥、耐压测试仪、绝缘电阻测试仪、接地电阻测试仪、泄漏电流测试仪、电子负载、电参数测量仪、数字功率计、变压器参数测量仪、变压器自动测试系统、变压器圈数比相位测试器、电器安全参数综合测试仪、变频电源、电源供应器、高频屏蔽网房、温湿度表、万用表、功率表、转速表、风速计、涂层测厚仪、镀层测厚仪、振动测量仪、综合测试机（马达、风扇、电吹风、灯饰、果汁机）等。
The performances of Ceramic-wood composite such as decay resistance, dimensional stability and effloresce resistance were improved owing to the introduction of the cymene, which reducing the inner stress of gel net, meliorating the brittleness and reducing the absorbility of gel.
CH3可以降低凝胶网络内应力，改善凝胶的脆性，同时憎水基团－CH3还可以降低凝胶的吸水性，因而材料的尺寸稳定性、耐风化和耐腐朽性能都得到提高。
In the aspects of research method, we took the method of preparing sol at first and then impregnating the wood to obtain ceramic-wood composite; this method made the wood use efficiently and increased the wood`s weight gain percent. The ceramic-wood composite with performances of well decay resistance, dimensional stability, effloresce resistance and high strength was obtained by importing the cymene to the net of gel as the result of co-hydroxylation between MTES and TEOS. Making use of XPS, we found that the apex of Si2p、O1s、C1s had evident chemical shift, which validated the existence of Si-O-C bonding. Key Words: Sol-gel, Ceramic-wood composite, Modified sol, Ecomaterials
在工艺方法上，采用先制备溶胶，然后浸注木材的工艺方法具有原料利用率高、提高增重率的优点；采用甲基三乙氧基硅烷和正硅酸乙酯共水解的方法，将甲基引入陶瓷化复合木材的凝胶内部，所制备的材料具有尺寸稳定性好、具有耐风化和耐腐朽性，强度高的特点；首次利用X射线光电子能谱，发现了Si2p、O1s和C1s谱峰发生了明显的化学位移，证实了Si－O－C键合作用的存在。
Ceramics retain the general appearance of the Net, have not broken impact resistance properties, and acid and alkali resistance, tableware made of the minimum heat temperature of 120 degrees Celsius, and the human body does not produce harmful toxins, general plastic products are unable to compare products, but also because of the difficult nature of fragmentation, with light weight, easy to keep clean, non-friable, not missing angle characteristics.
保有一般陶磁亮丽之外观，还具备耐冲击不易破碎之特性，且耐酸、耐碱，所制成之餐具，最低耐热温度为摄氏120度，且不会产生有害人体之毒素，是一般塑胶制品所无法比较之产品，也因其不易破碎之特质，具有重量轻、易清洗、不易碎、不缺角等特性。
Secondly, based the study of the effect which is the electromagnetic induction of the steel bar net and track change the primary parameter of the track circuit, the equivalent rail resistance mode and the transmission mode of ballastless track circuit are studied.
其次，在分析了无砟轨道钢筋网络与钢轨之间的电磁感应对轨道电路一次参数影响的基础上，研究了无砟轨道等效钢轨阻抗模型和无砟轨道传输模型。
Defense direct lightning stroke, the roof is generally vulnerable to lightning were installed lighting receivers, Then lightning and grounding resistance grounding device small reliable connectivity, Installed to the attention of prominent metal roofing components with a lightning belt, the net must be fully reliable connectivity.
就防直击雷而言，一般是在屋面易受雷击部位安装接闪器，然后通过引下线与接地电阻很小的接地装置可靠连接，安装时要注意屋面突出的金属部件与避雷针、带、网应全部可靠连接。
To achieve the target of averting maintain, hyper resistance of the corrosion, now all of the high speed railway, subway, light rail`s bridge`s metal embedded parts in advance, net contact built-in fitting, screw and gudgeon all request to carry on the complex alloy permeation + Dacromet + closing layer`s technological process.
为达到免维修，高抗腐要求，现高速铁路、地铁、轻轨桥梁预埋件、接触网预埋件，道钉螺栓等均需进行多元合金共渗+达克罗+封闭层技术处理。
The ratio between the net moment and net force on a tooth with reference to the center of resistance determines the center of rotation.
力偶矩与力的比值和阻抗中心的关系决定了牙齿的旋转中心。
The hypothesis about the linear relationship between net photosynthetic rate and stomatal conductance, which had formed the basis of the empirical model proposed by Ball et al, was analyzed by analogy with electrical resistance and simulation testing.
净光合速率与气孔导度之间的线性关系假设，对于建立Ball等的气孔模型［1］是至关重要的［2］。从文献中可以看到有大量的实验支持这个假设［2，3］，但也有实验表明这个假设并不是普遍成立的［4］。对这个线性假设的研究多数是实验，理论探讨却非常少［5］。
The main products include more than 100 varieties such as resistance welding machine and the circumference equipment, whole set equipment for making fan mesh enclosure, whole set equipment for making framework of dedusting filter bag, whole set equipment for making storage rack, whole set equipment for making steel wire net basket, and automobile special equipment.
产品主要有：电阻焊机及其周边设备、风扇网罩成套设备、除尘虑袋骨架成套设备、置物架成套设备、铁线网篮成套设备、汽车专用设备……等一百多个品种。
By least square method and similarity law, the author fits non-dimensional performance equation, creates mine ventilation net characteristic equation by main ventilating shaft air pressure and air volume balance law and main ventilating shaft resistance pressure law, computes the operating mode parameters by interpolation method, and thus creates the theoretical model for mine ventilation fans.
利用最小二乘法原理和通风机相似定律拟合通风机的无因次性能方程，并利用矿井风道风压和风量平衡定律以及矿井风道阻力定律建立矿井风道特性方程，并使用插值法进行工况参数的计算，从而建立矿井通风机选型的理论模型。
In order to strengthen Edition shares, to improve the resistance to water and solvent resistance to prevent screen and version boxes combined with Department business card printing and membership card when to transfer, you can use the machine tape coating applied reinforcing the edge of the picture and text with net glue or adhesive clogging their photographic emulsions, holes on the screen and should not be part of the kaikong.
为了不弱化版股，挑矮耐水性和耐溶剂性，避免丝网与版框的会面处在制卡和会员卡制息时漏不朱，可以用宽幅胶带纸包不闭增固图文边际，用不闭网胶或感平乳剂畅通其粘不合处、网版上的针孔及不答有的闭孔局部。
In fact, due to the scattering of light and refraction of existence, the formation of different film points to exist in varying degrees with virtual Halo dot at the edge (that is, at the edge of blackness is less than the net-point center part of the phenomenon of blackness), due to the film world virtual Halo at the edge of existence, print, due to the resistance in the outlets of regional optical edge capacity weaker than in the outlets of the central area on the PS network points and film on the dot size change, so as to give rise to differences in the levels of graphics and text.
本质上，由于平的散射和反射本体的活命，差别胶片变成的网不面都差别程量不天活命带有虚晕边际（即网不面边际部位的暗量小于网不面边际局部暗量）的本体，由于胶片上的网不面虚晕边际的活命，晒版时由于网不面边际不天区的阻平本领不弱于网不面边际不天区而使PS版上网不面与胶片上的网不面在巨细上有所保持，从而引起图文条理的差别。
The phase method means that the voltage and circuit are expressed as phase, and the RLC components are expressed as resistance or admittance, then the phase model of the circuit are sketched out, the algebraic equation of unknown voltage and circuit phase are written out with the phase formation of KCL, KVL and Ohm`s law. Through the introduction of the phase method, and set up the definitions of resistance and admittance, the author gives out the phase formation of KCL, KVL and Ohm`s law, for their forms are entirely the same as that of the formula used in analysis of direct circuit, we can analyze the phase model of sinusoidal circuit directly using the methods, principles, laws that used in analysis of direct circuit, for example, the net hole method, the method of joint, the superposition theorem, Thevenin's theorem, the equivalent source theorem. The differences lie in:（1）Express all the relations without citing the instantaneous expression of voltage and current, but as the forms of corresponding phases; （2） The corresponding calculations are not algebraic calculations but plural calculations, so the calculations are more difficult than those of the direct circuits.
所谓相量法，就是电压、电流用相量表示，RLC元件用阻抗或导纳表示，画出电路的相量模型，利用KCL，KVL和欧姆定律的相量形式列写出未知电压、电流相量的代数方程加以求解，通过引入相量法，建立了阻抗和导纳的概念，给出了KCL，KVL和欧姆定律的相量形式，由于它们与直流电路的分析中所用的同一公式在形式上完全相同，因此能够把分析直流电路的方法，原理，定律，例如，网孔法，结点法，叠加定理，戴维宁定理，等效电源原理等等直接应用于分析正弦电路的相量模型，其区别仅在于：（1）不直接引用电压电流的瞬时表达式来表征各种关系，而是用对应的向量形式来表征各种关系；（2）相应的运算不是代数运算，而是复数的运算，因而运算比直流复杂。
The results indicate that the water-cement ratio is the most important component design parameter, and the relationship between water-cement ratio, flexural bending strength and durability is the mixture ratio design foundation, even to maintain the same water-cement ratio, changing in cement consumption or the amount of water consumption of cement has a significant difference in road performance of road concrete, therefore, the design must control these three parameters simultaneously; in addition, the appropriate net slurry and air content in the concrete road are very imporant to enhance the durability and the crack resistance.
试验结果表明，水灰比作为最重要的组成设计参数，与抗弯拉强度及耐久性的关系是配合比设计的基础，即使保持相同的水灰比，变化水泥用量或用水量对混凝土路用性能的影响有着显著差异，因此，设计时必须同时控制这三个参数；此外，道路混凝土中适当的含气量和净浆体积分量对提高耐久性和抗裂性至关重要。
Galvanized welded wire mesh selection of high-quality wire, through the automation of mechanical precision processing technology made net of formation, structure strong, strong integrity, even if the latest local CD or partial under pressure not to slack phenomenon occurred, welded wire mesh molding after plating Zinc corrosion resistance, and a general barbed wire does not have advantages.
镀锌电焊网系选用优质铁丝，通过精密的自动化机械技术加工制成，网面平整，结构坚固，整体性强，即使局部裁截或局部承受压力也不致发生松劲现象，电焊网成型后进行镀锌耐腐蚀性好，具有一般铁丝网不具备的优点。
The photosynthetic parameters of Sinocalycanthus chinensis in both overstory and understory, including the diurnal changes of net photosynthetic rate, intercellular CO2 concentration, dark respiration rate and stomatal resistance, were measured using a LCA4 Portable Photosynthesis System. The photosynthetic parameters of the accompanying plants such as Boehmeria platanifolia, Rhus chinensis and Weigela japonica var.
用LCA4型便携式全自动光合测定仪，在自然条件下，于7月下旬的晴朗天气测定了群落冠层和林下两种不同光环境下夏蜡梅的净光合速率、胞间CO2浓度、呼吸速率、气孔阻力的日进程，并与其伴生植物悬铃叶苎麻、盐肤木、水马桑Weigela japonica var。
The following three factors have great influence in the safe operating system: Whether the generator commutator can work normally, Whether both high and low tension stand-by power can be used properly and safely, Whether the resistance of the electric grounded net can meet the standard and requirement.
发电机滑环冒火，高、低压备用电源能否安全可靠投运，电气接地网接地电阻是否符合标准，是影响发电机安全稳定运行的 3个重要问题。