This paper raises the dynamlc mathematical model for vacuum pressure of condenser during turbine vacuum dropping test, and analyses the relationship between air leakage flow and vacuum dropping speed during test.
本文建立了凝汽器在真空严密性试验工况时排汔压力的动态数学模型，分析了凝汽器真空下降速度与漏入空气量之间的关系，并对真空严密性试验的工作程序提出了修改意见。
Based on actual construction of Xing-Tai expressway, the effects on under-membrance vacuum degree are analyzed in detail caused by sand layer, bagged sand drain .
以新台高速公路实际施工情况为背景 ,较详细地分析了地基中砂层、袋装砂井深度、排水滤管布置形式及路基填筑等对膜下真空度的影响 ,并在施工过程中不断改进 ,取得了比较满意的结
Leakage and outgas of dewar vacuum vessel also is analysed.
杜瓦微漏孔和真空室内部材料放气使杜瓦真空度下降。
The absoluteness of vacuum standard deteriorates with lowering of its pressure.
随着真空度的提高，真空度计量标准的绝对性越来越下降；
vacuum-operated load reducer
真空下降负荷限制器
downdraft constant - vacuum carburettor
下吸式恒真空度化油器
The statement should be qualified and should specify that all bodies fall at the same rate in a vacuum.
这个论述应加以限定，并修正如下：所有物体在真空中以相同速度降落。
The maximum operating temperature should be reduced for non-air applications with the exception of argon and helium that can be used without any reduction.
在真空条件下，应该相应降低最大操作温度，氩气、氦气等惰性气体条件除外。
The temperature in the room was brought down by the air conditioner.
空调使房间的温度降低下来。
Causes of vacuum reduction of condenser of steam turbine and on-line handling
汽轮机凝汽器真空度降低的原因及在线处理
Cause Analysis of Vacuum Loss during Operation of Extraction Condensing Turbines and the Remedy
抽凝式汽轮机运行时真空下降的原因及处理
The temperature of the wick and the bulb falls below that of the air.
纱布与感温球的温度下降而低于空气的温度。
The descent warms the air and its relative humidity accordingly drops.
这种下沉使空气变暖，其相对温度相应下降。
The salt water is passed through a series of chambers which have progressively higher vacuums and lower temperatures.
咸水流过一系列真空程度逐渐增高，温度逐渐降低的蒸馏室。
Numerical prediction of settlement and biodegradation effect on porosity within landfill
考虑填埋场沉降和生物降解作用下的孔隙度仿真预测研究
In order to reduce the temperature necessary to accomplish boiling, vacuum evaporation is often used.
为了降低完成沸腾的必须的温度,经常使用真空蒸发。
During the compression(or blast)phase, the temperature of the air rises and during the decompression(or suction)phase it falls.
在压缩（或爆震）周相下，空气温度上升，在非压缩（或吸收）周相下，空气温度则就下降。
The temperature fell to 26°below zero.
温度下降到零下26度。
In a vacuum, light bodies will fall as fast as heavy ones.
在真空中，轻物体落下的速度与重物体一样快。
VACUUM DECAY OF GRAVITATIONAL FIELD WITH COSMOLOGICAL TERM AT FINITE TEMPERATURE
有限温度下带宇宙项的引力场的真空衰变