利用所建模型，分析了不同激光功率密度和背景气压对烧蚀和蒸汽膨胀的影响。
The model has been used to investigate the influence of different laser irradiance and ambient gas pressure on the laser ablation and the expansion of plume.
包含在快速膨胀的蒸气（不是蒸汽）或气体中的能量使转子旋转并产生发动机的动力。
The energy contained in the rapidly expanding vapors (other than steam) or gases turns the rotors to produce power of the engine.
蒸汽在发动机中膨胀后，温度必须大幅度地下降以获得高效率。
For high efficiency, the steam must decrease substantially in temperature as it expands within the engine.
水和蒸汽的体膨胀系数和压缩率是反应堆热工水力、传热学和工程热力学中常用的参数之一。
Volumetric expansion coefficient and compressibility of water and steam are important parameters usually applied in the reactor thermal hydraulic, heat transfer and engineering thermodynamics.
当原料气流过节流件时，产生焦耳-汤姆逊膨胀及降温，使部分气体和大部分水蒸汽液化。
As the feed stream flows through the choke, the resulting J-T expansion and cooling causes some gas and most of the water vapor to liquefy.
蒸汽在汽缸中膨胀引起部分蒸汽冷凝。
The expansion of the steam in the cylinder causes some of the steam to condense.
结果表明：（1）水蒸汽凝结主要发生在引射喷管和喷管出口膨胀区中。
The results show that(1) Vapour condensation occurs in ejector nozzles as well as at the regions just downstream the nozzle exit.
气体膨胀时能做功这个原理被用在蒸汽机上。
The principle that gas can do work while expanding has been applied to the steam engine.
在事故后果评价中采用量化风险分析，提出了沸腾液体膨胀蒸汽爆炸和不可控蒸气云爆炸对周围人员可能造成伤害的评价方法。
Quantified risk analysis (QRA) is used in consequence assessment. The assessment method for the hazards to the environment by UVCE and BLEVE is researched.
BLEVE是一种物理爆炸，具有严重的破坏性，为研究沸腾液体膨胀蒸汽爆炸的发生机理，建立了小型实验装置进行模拟试验。
The latter is a kind of physical explosion with a serious destructive force. To study the generation mechanism of BLEVE a small-scale experimental device has been set up to conduct simulation tests.
BLEVE是一种物理爆炸，具有严重的破坏性，为研究沸腾液体膨胀蒸汽爆炸的发生机理，建立了小型实验装置进行模拟试验。
The latter is a kind of physical explosion with a serious destructive force. To study the generation mechanism of BLEVE a small-scale experimental device has been set up to conduct simulation tests.
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