腔

According to the diffusion theory and the principle of material equilibrium, the dissolution velocity ...

结果表明，在合理的工艺条件下，通过盐岩水溶开采可以获得稳定的腔体形态，以满足地下储气库的要求，从而为盐穴储气库的溶腔设计提供理论依据和决策手段。

The experiments of single frequency fiber ring laser with mode selection by fiber Bragg grating Fabry-Perot etalon have been performed.

进行了以光纤光栅法布里-珀罗标准具为外腔选模器件的环形腔单频光纤激光器实验研究。

The relation between the air gap thickness and the peak wavelength in micro-optical electromechanical system optical tunable filter based on Fabry-Perot etalon is discussed.

分析了基于法布里珀罗腔的微光机电系统可调谐滤波器中，空气腔厚度与峰值波长间的关系。

The fidelities of the system surge periodically from 0 to 1 for the etceteras Bell state at original time when average photon number of two-mode entangled coherent states cavity fields are very small.

对于好腔，若原子初始时刻处于相干保持态，系统保真度呈指数单调衰减；若原子初始时刻处于其余Bell态之一，系统保真度呈指数振荡衰减，且随着腔场初态的平均光子数的增加，系统保真度的振荡频率增大，振幅减小。

Results show that pollutant dispersion of a metal dry etcher during preventive maintenance can be effectively controlled by side venting at a large flow rate near the chamber top whether the chamber is fully open or with the hood. Good agreement between the experimental data and the simulation results is obtained. The SF6 concentration at the breathing zone was also found to be lower than the detection limit of the FTIR spectrometer.

研究结果显示，不论反应腔上方全开或上方有气罩时在反应腔上方进行大量抽气，可有效地控制危害性气体的逸散，模拟的控制效率结果与实验数据相符合，且发现在人员呼吸带的SF6浓度均低於FTIR之侦测下限。

A fiber taper can evanescently couple to whispering gallery modes in a planar silica microdisk for observing the optical properties of the microdisk cavity.

使用光纤锥可以通过其产生的倏逝场，来耦合微盘腔中的回音壁模式，从而获得对微盘腔光学性质的考察。

Based on the comprehension of the researches of CO2 expressor, rolling piston expresser has been designed independently with the roilling pistons of expansion chamber and compression chamber integrated with the same shaft. Design parameters have also been calculated concretely

综述了国内外CO2膨胀压缩机的研究现状，分析了现有膨胀压缩机的技术特点，独立设计了膨胀腔活塞与压缩腔活塞同轴联接的滚动活塞式膨胀压缩机，同时，还进行了具体的参数计算。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

The results of a two rod plane plane resonator used for high power solid state lasers are extended to multirod plane plane resonators.

将高功率固体激光器使用的二棒平行平面腔的结果推广到多棒平行平面腔。

With optical feedback,the modulation frequency of output intensity is proportional to the ratio of external cavity length to internal cavity length.

有光回馈时，同时改变激光频率和外腔相位，激光器输出功率波动频率正比于内、外腔长度之比。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。