在腔中的

Effects of various process variables on average flow velocity of LFC liquid aluminum in the mold have been studied.

摘 要：研究了各工艺因素对消失模铸造铝液在型腔中平均流速的影响。

Humans are therefore separated from the coelacanth by hundreds of millions of years of evolution, yet the two organisms still share critical DNA sequences.

在海洋生物向陆地脊椎动物的不断进化中该因子一直处于活跃状态，直到物种登入到陆地上。而在腔棘鱼身上该因子仍然处于活跃的状态。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

Objective To investigate the value of adenosine deaminase for the diagnosis of tuberculous serous cavity fluidify.

目的 探讨腺苷脱氨酶检测在结核性浆膜腔积液中的诊断价值。

Objective To study the application of dropsy of serous cavity in examination of tumor cell.

目的 探讨浆膜腔积液在检测肿瘤细胞中的价值。

The colour of eggshell is formed by pigment sediments that are formed in the reproduction cavity.

蛋壳颜色是蛋壳在生殖腔中形成的色素沉积而成。

In cavity quantum electrodynamics, an optical resonator can be used to enhance this interaction for atoms.

在"腔量子电动力学"中，一个光学谐振器可被用来增强原子的这种相互作用。

The growth patterns of hircine non-antral follicles cultured in the an agar gel culture system resembled in vivo.

在三维琼脂凝胶培养体系中，山羊无腔卵泡的生长模式类似于体内。

Objective: To evaluate the value of intracavity ultrasound in detecting hyperplasia of prostate.

目的：评价腔内超声在检测前列腺增生疾病中的价值。

The application of wafer bonding technology in long? wave vertical cavity devices is given.

最后介绍了晶片键合技术在长波长垂直腔型器件研制中的应用。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。