This paper briefly introduces the stress diversification of heating direct-burying pipeline caused by operating press and temperature variation.
简要介绍供热直埋管道在工作压力和温度变化所引起的应力变化，对管道强度和稳定进行验算。
The down core changes of Florisphaera profunda percentage content implied that the thermocline was shallower in glacial periods and deeper in interglacial periods, which might be the direct controlling factors of WPWP productivity changes. It is speculated that the glacial-interglacial fluctuation of the depth of thermocline was induced by the super-ENSO variation.
钙质超微化石下透光带属种Florisphaeva profunda百分含量指示的温跃层深度变化表明冰期温跃层浅、间冰期温跃层加深，这说明类ENSO式变化导致的冰期-间冰期温跃层深度波动可能是MIS7期以来暖池核心区古生产力在冰期高而在间冰期显著降低的直接控制因素。
In the middle reaches of Heihe River, leaf area index and water consumption of Gansu Poplar (Populus gansuensis C. Wang et H. L. Yang) were measured by direct method and Heat Pulse Meter SF300 made in Australia during growing season, respectively, and the variation of leaf area index of Gansu Poplar and its relation to water consumption were studied.
在黑河中游，利用直接法和热脉冲树干液流仪分别监测了二白杨生长季节的叶面积指数和耗水量动态变化，研究了二白杨叶面积指数动态变化规律及其与耗水量的关系。
It is found that the variation of soft characteristic has direct relations with the geometric parameters of suspension mechanism, rolli...
新驾驶座椅样机的试验表明，这是一种结构简单，隔振效果良好，且适用于各种类型拖拉机和农用车辆的驾驶座椅悬架系统。
This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters, apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure, consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology, reservoir, and rock mechanics and reservoir damage, etc. Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion, gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view, also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.
本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究，取得了以下主要成果：1形成了利用测井资料，结合室内岩芯测试结果，获取静动岩石力学参数的相关性特征，从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上，利用弯曲薄板作为力学模型，结合区块实际地质特征对背斜构造进行曲率分析，通过曲率与应力的关系，利用背斜构造不同部位的主曲率求得相应的构造应力值，从而建立起背斜储层的分层应力模型；对已有压裂资料的区块分层，形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数，建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素，分析造成高破裂压力的主要原因，综合利用岩石力学、弹性力学等知识，建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型，为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析，找出了各影响因素和岩石力学参数之间的关系，为从机理上解释酸化预处理降低破裂压力提供了理论基础；从微观元素的角度阐述了单矿物与酸反应的机理；并在此基础上，有效评价了各种矿物的酸敏感性，定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验，结合岩石力学三轴应力实验，系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合，在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上，建立了砂岩损伤力学模型，并对其进行验证，在此基础上定量计算酸化后的破裂压力，有效指导现场施工
There is a direct proportion between the variation of collagenase content in lacrima after cornea alkali burn and the area of corneal epithelial scarcity.
角膜碱烧伤后泪液中胶原酶的含量变化与角膜碱烧伤后形成的上皮缺损面积呈正相关。
Thus, there appears to be no direct relationship between the variation observed in p82 and the pathogenicity of the two BBSV isolates.
由于未发现由此引起的相应变化，故认为BBSV复制酶基因变异可能与其对苋色藜和豇豆的致病性差异没有关系。
In this paper the element stiffness matrices of the linear load axial element with linear variation in cross-section and the trapezoid constant shear panel with constant thickness have been derived, using these element stiffness matrices we can directly apply the Direct Stiffness Method to the thin-walled structures with the linear axial element and shear panel.
木文导得了具有线性变化切面面积的勾变轴力杆和等厚度的受常剪流梯形钣的元件刚度矩阵。利用这些元件刚度矩阵我们就能将直刚法直接应用到具有匀变轴力杆和受剪钣的薄壁结构。
Aimed at the key technology of fuel direct injection, a representation of HiTAC technology, the dissertation numerically simulated the 3 dimensional turbulent flow, turbulent mixing process, turbulent combustion, coupled radiant heat transfer and nitrogen oxide pollutant turbulent formation using a series of FORTRAN programs developed by the author. The simulating results and variation rules are in agreement with the experiment results under similar experiment conditions.
针对以燃料直接喷射为代表的高温空气燃烧技术关键，以FORTRAN语言为编程工具，用自行编制的计算程序，分别对高温空气燃烧过程的三维湍流流动、湍流混合、湍流燃烧、耦合辐射传热过程和氮氧化物污染物NO〓的湍流生成进行了数值模拟，模拟计算结果与相似实验条件下的实验结果基本符合，变化规律一致。
To solve the problems that cyclic variation is high in low power output and NOx emission is high in high power output in compression ignition engine with compressed natural gas direct injection, a swirl chamber combustion system with glow plug ignition was developed.
针对缸内直喷压燃式天然气发动机低负荷循环波动大及高负荷NOx排放偏高的问题，设计开发了涡流室式热面点火燃烧系统，研究了涡流室通道尺寸对缸内天然气空气混合气形成、着火燃烧及发动机运转特性的影响。
Because homeotic gene mutation and floral organ variation is a direct relationship, therefore the mutant application is the current functional genomics study developmentdirection. We discovered one mutant ah from line 458, which was a line ofthe twin-seedling strain W2555.ln this study, we have investigated the morphogenesisprogress, genetic analysis of mutant traits and molecular tagging of related gene.
目前，由于在水稻中发现的花器官突变体很少，所以对水稻花发育的研究主要是利用双子叶植物MAS-box基因的保守序列设计引物，在水稻基因组或者cDNA文库中筛选与双子叶植物花器官发育相对应的MADS基因，因为同源异型基因的突变与花器官的变异是直接对应的关系，所以突变体的应用是当前功能基因组学的发展方向。
Results of analysis show that the heretability of Y is 0.69, genetic variation 42.9%, and genetic gain by direct selection 60.3%.
结果表明：(1)产量的重复力为 0 。69，遗传变异 42 。9%，直接选择遗传增益 60 。3%；百蕾质量与单枝蕾数的重复力分别为 0 。73和 0 。65 ，遗传变异系数 82 %和 43.7%，产量相关选择效率 96.1%和 96.2 %，是产量选择的重要指标；而总蕾数的重复力仅为 0 。2 4，遗传变异系数 16.9%，产量相关选择效率仅 1%，不能作为产量选择的指标。
The direct inspection method is to directly contact with leaked liquid with sensors to inspect its variation in physical and chemical behaviors. What more the paper introduces are the conductive powder element inspection method, cable inspection method and optical fiber inspection method.
直接检测法是利用检测元件直接与泄漏液体接触检测其物理、化学特性的变化，介绍了导电性粉体元件检测法、电缆检测法和光导纤维检测法。
Using the data of multiband solar direct radiative intensity observed in July 1980 to July 1981 at Peking University, the variation of the atmospheric transparent spectrum and the Angstrom turbidity were analysed.
利用1980年7月&1981年7月在北京大学用多波段太阳直接辐射强度的观测资料，分析了这一年中大气透明度光谱和埃斯屈朗浑浊度的变化。
While variation of soil enzyme activities (Urease、Invertase、Catalase、Polyphenoloxidase、Dehydrogenase) were also different. There was no direct relationship between variation and reclamation years.
而土壤酶活性（脲酶、转化酶、过氧化氢酶、多酚氧化酶和脱氢酶）各自的变化规律也不同，变化规律与复垦时间没有直接关系，说明影响土壤生物活性的因素是复杂的。
The direct evidence of temperature alternation is provided by the assemblages and density variation of planktonic foraminifer, calcium micro-fossil in the palaeo-ocean.
浮游有孔虫、钙质超微化石组成和数量的改变也为古海洋温度升、降提供了直接的证据。
A high efficient direct integration method is proposed for evaluating the variation effect of nonlinear numerical simulation results of geomechanics subject to multi-random parameters.
提出了一种用于评估多参数随机变异情况下岩土力学非线性数值模拟结果可靠性的多维高效直接积分型随机分析方法。
The abnormal emission of hydrogen will reflect sharp variation of physicochemical properties in coal body and be a direct sign of coal and gas outburst.
氢的释放异常反映的是煤体内部急剧的物理化学变化，是突出的直接反映。
The results calculated at 1 AU of Bremsstrahlung radiation show that the variation of emission intensity If has direct relation to the frequency of electromagnetic wave which has been radiated from the plasma.
本文对太阳宁静及耀斑期间1AU处等离子体轫致辐射计算表明，等离子体辐射强度If的变化与辐射的电磁波频率有直接的关系。
The recovery rate, calibration curve, coefficient of variation of the filter paper method are compared with the direct analytical method.
文中对滤纸洗脱法的回收率、标准曲线、变异系数等均与直接分析法进行了比较。