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The emphasis of this paper is research on the detection of laser-generated surface acoustic wave.

本文着重在实验上研究激光产生声表面波的检测。

If the field varies, such as by the application of an electrical pulse, an acoustic wave 32 is generated.

如果该字段各有不同，如所申请的一个电脉冲，声波是32所产生的。

It is found that the pressure wave generated by thermal expansion can affect the temperature field. It is suggested that this effect is caused by the adiabatic compression and expansion when pressure waves traverse the media.

通过分子动力学模拟考察了气态，液态和固态的氩在脉冲加热情况下的快速瞬态导热，观察了温度，压力，动量，密度等物理量的分布，以及动能在三个平动自由度上的分布。

The so-called "adiabatic expansion" means that the light generated by the acoustic signal in the absorption within the region transit time under the same conditions are far greater than the time required for thermal diffusion, negligible effect of the proliferation of light signal the impact of this Conditions, acoustic imaging to short-pulse laser for excitation, ultrasonic signal for the information to the carrier, with high-resolution and high-contrast imaging features.

所谓的"绝热膨胀"是指所产生的光声信号在吸收区域内的渡越时间远远大于相同条件下热扩散所需的时间，可忽略热扩散效应对光声信号产生的影响，在此条件下，光声成像以短脉冲激光为激励源、以超声信号为信息的载体，具备高分辨率和高对比度的成像特点。

Split vertical channels are generated along each side of adjacent pillars.

分裂垂直沟道沿相邻柱的各个侧产生。

In this paper, the adjointness of the product of two differential operators generated by a third order normal and singular symmetric differential expression in the limit-circle case is discussed. The necessary and sufficient conditions which make the product operators being the adjoint operators obtained by the matrix analysis and calculation. At the same time, the adjointness of the product of the power and adjointness operator obtained.

本文首先讨论了正则和奇异两种情况下两个极限圆型三阶对称微分算式生成的微分算子的乘积的自共轭性，运用矩阵分析和计算，得到了乘积算子为自共轭算子时边界应满足的充分必要条件，同时得到了幂算子的自共轭性、自共轭算子乘积的自共轭性等乘积算子的其它若干性质。

Use the Analytic Hierarchy Process to design a performance appraisal indicator system that suit with the acknowledged employees specialty to adjudge the result which generated by these special persons.

针对航空科研项目中知识型员工的特点，运用层次分析法构建了知识型员工的绩效考评指标体系，制订了绩效考评的方法。

The model was solved by the Ritz method, and the orthogonal polynomials generated by the Gram-Schmidt process were employed as admissible function for both disk and blades. With this approach, the matrix derived from kinetic energies becomes diagonal and numerical manipulation can become easy and stable.

采用Gram-Schmidt方法生成正交多项式作为李兹容许函数进行模型的离散化，简化了所得到的频率方程求解过程，有利於求解过程的数值稳定性，并可方便地通过对方程系数性质的分析了解结构振动模态的性质。

In addition,·OH can be generated with high efficiency during theirradiation of DPCOH in aerated water solution.

DPCOH在氧存在条件下，在水溶液中可以非常高效的敏化产生羟基自由基。

The tethered aerostat JL-1K is an aerostat which can be taken off and kept afloat by static lift generated by lighter-than-air gas filled in the envelop.

JL-1K 系留艇是靠填充轻于空气的气体产生的静升力升空、滞空的浮空器。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。