During the ordinary modeling process of first order hydraulic system, some principal diagonal elements of mass matrix were zero, and the stiffness matrix was nonsymmetrical.
建立以界面信息形式表达的一阶液压均衡系统动力学方程，同时利用卷扬系统动力学方程，首次建立机械卷扬-液压均衡子系统动态耦合的数学模型。
A general mathematic model of lifting subsystem and hydraulic balancing subsystem was set up by using correspond relation of the force and the displacement at the interface of lifting and hydraulic system, then the question that the principal diagonal elements of mass matrix were zero is resolved. Meanwhile the effect on the general dynamic characteristic of ellipticity of is considered.
通过卷扬系统与液压系统在界面耦合处的力和位移协调关系，建立诸如M〓+C〓+KX=F形式的机械卷扬-液压均衡系统综合数学模型，模型中考虑了卷筒椭圆度偏差以及直径偏差对整体动态性能的影响，解决了耦合后数学模型质量矩阵主对角线元素奇异的问题。
Thanks to a close-ratio six-speed transmission with a single-mass flywheel and the 20 kg lower vehicle weight, the engine revs up even more freely, thus enabling the 911 GT3 to sprint from zero to 100 km per hour in 4.2 seconds. It takes just 13.3 seconds to hit to 200 km per hour. Maximum speed is 310 km per hour.
这主要是由于该车采取了密齿逼得六速变速器以级车重降低了20公斤，使引擎能更快的提高转速，911 GT3从静止加速到时速100公里仅需4.2秒，而加速到200公里仅需13.3秒，最高时速为310公里。
In the 1970s, you had centralized strategic planning, matrix organization designs, management by committee, flextime, and zero-base budgeting. the 1980s gave us entrepreneurship, quality circles, theory z, just-in-time inventory systems, deming`s 14 principles, self-managed teams, and skunk works. and the 1990s offered up strategic alliances, exploiting core competencies, pay for performance, tqm, reengineering, mass customization, charismatic leadership, visionary leadership, emotional intelligence, boundary-less organizations, learning organizations, outsourcing, and empowerment.
在70年代，你集中在战略规划；矩阵组织设计；委员会管理；灵活工作时间；灵基点预算。80年代，我们被给予了企业家精神；质量圈； z理论；即时库存系统；戴明的14项原则；自我管理团队；臭鼬工厂。90年代为我们提供了战略同盟；利用核心能力；表现工资；全面质量管理tqm；业务流程再设计；大规模定制；领导魅力；有远见的领导；情商；无界组织；学习型组织；外购；和授权。
Basic characteristics of cosine transform spectrum were analyzed, where contour lines of 2D cosine transform of point mass present the shape of a quarter of concentric circles and the number of counter become small along with the increasing of wave numbers. The spectrum of vertical rectangularcylinder put up periodic zero counters which mark off quadrate areas, the values of counter in each areas alternately change between the plus and the minus, and with the increasing of wave number, the values of counter present attenuation character alike e exponent.
分析了点质量和直立矩形柱体重力异常余弦变换谱的基本特征：点质量二维余弦变换谱等值线呈1/4同心圆形状，等值线随着波数的增大而变稀；直立矩形柱体谱出现了周期性变化的零等值线，该等值线将非零等值线划分为a×b个矩形区域，而且等值线值在各矩形型区域中正负交替变化，随着波数的增大，不同的矩型域中等值线值呈e指数衰减特征。
The city has established detailed measures, such as zero landfill, no landing during collection and transportation, garbage fee levied by bag, multiple recycle pipelines, regional bio-mass energy centre, etc.
该市建立了诸如零填埋场，具体措施，没有降落时收集和运输，垃圾费按袋征收，多回收管道，区域生物量能源中心等已完全改变了传统的做法。
The preliminary experiment showed that a mass resolution in excess of 500 and a mass range of over 2600 Thomson were obtained, using a digital trapping voltage of only 200 V (zero-to-peak).
研究结果表明：一个用印刷线路板制作的简单矩形离子阱，在200V的数字束缚电压的驱动下，获得了大于500的质量分辨率和超过2600Th的质量范围。
Of non-zero rest mass can travel at or faster than the speed of light in vacuum.
动源是质量，物理真空在质量的挠动下引起真空的自旋纵向极化，就表现为引力场；如果
8 Ground 接地 Conducting mass of the earth whose electric potential at any point is conventionally taken at zero.
连接到大地使任何一点的静电位水平处于零电位。
This paper applies simulation and actual data to make a comparative analysis of the effects of the four different references:average reference, linked mastoids reference, Cz reference and zero reference realized by the recently-developed REST(reference electrode standardization technique) for calculating the center of mass of EEG.
针对脑电头皮电位质心的计算问题，用仿真和实际数据计算比较了平均参考、连接耳参考、头顶参考和新近出现的近似零参考技术方法的差异，结果表明，采用REST可使得电位质心的计算误差在多数情况下更小。
Flow control is one of important areas of research in fluid technology, and in the 21st century, the most important breakthrough in aerodynamics may be in the area of flow control. The synthetic jet, a zero mass flux jet based on vortex dynamics, has been a remarkable and promising active flow control technology in the recent decade.
流动控制是流体技术最主要的研究领域，21世纪的空气动力学将在流动控制领域取得重大突破；合成射流是一种基于旋涡运动的零质量射流，是流动控制领域近10年来最热门活跃的流动主动控制技术。
This thesis intends to extend the frequency range of a shaker, minimize the impact of the additional mass and stiffness on the assessment results and make the frequency property of a shaker flat. Firstly, a calculating model of exciter with zero load is built.
本文旨在拓宽激振器的使用频率范围，减小激振器附加质量和附加刚度对测试结果的影响，并使激振器具有平坦的频率特性。
For the mass transfer efficiency, the point efficiency of each component is unequal in the multicomponent system. Some of the efficiency may be less than zero or more than one, even infinite.
多组分传质过程各组分的点效率不相等，某些组分的点效率可能小于零、大于1或趋于无穷大。
For the system including feedback linearization, rotation axis of the rotor is consistent with the mass center completely, that is to say, the rotor revolves round principal axis of inertia, and electrostatic force drops to zero.
对于反馈线性化后的系统，转子旋转轴迹点则完全和质心重合，转子绕惯性主轴旋转，静电干扰力降至零。
Carries on through the analytic hierarchy process the mass datas using the target zero dimension method the data normalized processing, establishes the judgment matrix then to obtain various targets weight, the final weighting obtains the appraisal result.
通过层次分析法将大量数据运用指标的无量纲化方法进行数据的归一化处理，建立判断矩阵进而得到各指标的权重，最终加权得到评价结果。
When the mass of axion approaches to zero, the above process expresses some similar characters to the conversion of the photons to the gravitons.
在轴子质量趋于零的极限条件下，上述过程和光子转化为引力子的过程表现出某些非常类似的性质。
Quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of.
数量词；既可用于复数名词也可用于复数计数名词以表明完全缺乏、几乎完全缺乏或零量的。
Discussed was the influence of photon rest mass on the delay of the radar echo which was sent from the earth and was reflected from the plant in the gravitational field of the sun, when the photon rest mass did not equal to zero in the curved time-space.
讨论了弯曲时空下，当光子静止质量不为零时引力的时间延迟效应，即光子静止质量对在地球上发射再从行星上反射回来的掠过太阳的雷达回波延迟的影响。
Under the influence of the like induction electric field force, the velocity of the mass motion of the binding electron pairs increases from zero to 103-104 ms - 1, making the entropy the of superconducting current less than the one of the normal current.
在类感应电场力的作用下，束缚电子对质心定向运动速度由零增大到103-104ms-1，使超导电流的熵小于正常电流的熵。
In relativistic mechanics, center of mass system is replaced by center of momentum system (the reference system in which the total momentum of a physical system equals zero).
在相对论力学中，质心系（质量中心参照系）亦被有确切定义的动量中心系（系统总动量为零的参照系）所代替。