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If rock compressibility is calculated by the elastic modulus method, its results are relatively reasonable. But if it is calculated by the Hall Plate empirical formula, the value of rock compressibility is too large. Thai's to say, it overvalues the elastic energy of formation rocks. And the velocity of pressure drawdown of the gas reservoir numerical simulation is caused to be too slow.

由Hall图版经验公式法计算得到的岩石压缩系数偏大，即对地层岩石的弹性能量估计偏大，从而导致气藏数值模拟计算的压降速度偏慢；而采用弹性模量法计算岩石压缩系数，其结果相对较为合理。

On the basis of analyzing the oscillatory frequency of crystal oscillator , the general expression of the frequency deviation of crystal frequency modulation oscillator is de rived .

本文在分析晶体调频振荡器振荡频率的基础上，得出了晶体调频振荡器频偏的一般表示式，最佳负载条件下的频偏设计公式和调制级有电流串联负反馈时的频偏设计关系式。

According to the diffraction theory used in DVD system, we propose a new theory to analyze the RF signal and tracking error signal of Super-RENS disk. Then we use simulate the tracking error signal under beam aberration. Finally we use FDTD method to simulate the tracking error signal at defocus.

我们亦根据传统光碟片的绕射理论，提出一新的架构用於分析此近场结构，并用此理论进行射频及偏轨信号的模拟；接著探讨在有像差产生的情形下，其对偏轨信号的影响，最后用有限时域差分法验证在失焦下，偏轨信号的变化。

Based on the theory of thermal emission polarization and the method of thermal emission polarization detection, the relation between the surface roughness of aluminum and steel plates and their degree of linear polarization of the thermal emission was studied by using a kind of thermal imaging polarimeter.

中国科学院安徽光学精密机械研究所遥感研究室，合肥 230031根据热红外偏振的原理和探测方法，利用一种热红外偏振探测系统分别研究了铝质和钢质金属板热红外偏振度和其表面粗糙度之间的关系。

The writer thinks existing major problems:1、The confusion Produces by the same plant have the different name、the different plant have the same name、think the typeface meaning just the righteousness,even fabricate without basis etc; 2、Because dont understand living creature type and adaptability in the depth of the water for the plants , A great deal of aquatic plants death;3、In planting design, so much express of plants specification ,and many of them are disobey with biology characteristic, so the plants are hard for purchase or the result is very bad after plant; 4、Plant density more than 100 times or less than several decuples of normal.

作者认为存在的主要问题有：1、植物名称同物异名、同名异物、望文成义，甚至凭空捏造等等产生的混乱；2、植物生物型和水深适应性不了解造成的种植水深不符植物习性，从而使大量水生植物死亡；3、种植设计中，苗木规格的表述不妥，许多表述与植物的生物学特性相违背，造成苗木难以采购或种植后效果极差；4、种植密度严重偏大或偏小，偏大的大于正常的100多倍，小的则少几十倍。

The writer thinks existing major problems:1、The confusion Produces by the same plant have the different name、the different plant have the same name、think the typeface meaning just the righteousness,even fabricate without basis etc; 2、Because dont understand living creature type and adaptability in the depth of the water for the plants , A great deal of aquatic plants death;3、In planting design, so much express of plants specification ,and many of them are disobey with biology characteristic, so the plants are hard for purchase or the result is very bad after plant; 4、Plant density more than 100 times or less than several decuples of normal.

作者认为存在的主要问题有：1、植物名称同物异名、同名异物、望文成义，甚至凭空捏造等等产生的混乱；2、植物生物型和水深适应性不了解造成的种植水深不符植物习性，从而使大量水生植物死亡；3、种植设计中，苗木规格的表述不妥，许多表述与植物的生物学特性相违背，造成苗木难以采购或种植后效果极差；4、种植密度严重偏大或偏小，偏大的大于正常的100多倍，小的则少几十倍检针机。

The writer thinks existing major problems:1、The confusion Produces by the same plant have the different name、the different plant have the same name、think the typeface meaning just the righteousness,even fabricate without basis etc; 2、Because dont understand living creature type and adaptability in the depth of the water for the plants , A great deal of aquatic plants death;3、In planting design, so much express of plants specification ,and many of them are disobey with biology characteristic, so the plants are hard for purchase or the result is very bad after plant; 4、Plant density more than 100 times or less than several decuples of normal.

作者认为存在的主要问题有：1、植物名称同物异名、同名异物、望文成义，甚至凭空捏造等等产生的混乱；2、植物生物型和水深适应性不了解造成的种植水深不符植物习性，从而使大量水生植物死亡；3、种植设计中，苗木规格的表述不妥，许多表述与植物的生物学特性相违背，造成苗木难以采购或种植后效果极差；4、种植密度严重偏大或偏小，偏大的大于正常的100多倍，小的则少几十倍螺旋板换热器。

Experimental results indicate: At zero electromagnetic field the light of transverse flow of two modules of COIL without any polarizing elements is partially polarized if the resonator configuration is a foldaway stable cavity, moreover, the degree of polarization decreases gradually in the course of radiation.

实验结果表明：在腔内没有任何偏振选择器件和不加外部电磁场的情况下，采用折叠式稳定腔的横流双模块氧碘化学激光光束呈现部分偏振性质，而且在出光过程中偏振度逐渐降低。

The simulations of ground temperature and earth absorbed net solar radiation are lower than the observation.

由于模式模拟的地温偏低，净的短波辐射偏小，则模拟的感热和潜热值偏小。

Highly absorptive nonmetallic material, die-board, was cut by linear polarized CO2 lasers through eight different directions. Effect of laser power, cutting speed and assisted air on the width of the cut kerfs of the die-board was also discussed by contrast with that of lower carbon steel.

为了研究线偏振CO2激光对高吸收率非金属材料的影响，采用线偏振CO2激光沿着不同的方向切割模切板，研究不同激光功率、切割速度、切割方向、辅助气体对切缝宽度的影响，同时对比线偏振激光切割低碳钢。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。