The lighter version used liquid hydrogen, the heavier used hypergolic propellants.较轻的推进器采用液态氢, 较重的采用自燃推进剂.Pressure - fed engines are particularly susceptible to dissolved gas in the propellants.挤压 式 发动机对推进剂中溶解的气体特别敏感.Thi...
By 1978, in the USA, the use of CFCs in aerosol propellants was banned.美国自1978年起禁止在喷雾剂压缩气体中使用含氯氟烃。This law closely resembles that obtained with conventional propellants.这种规律非常类似于用普通推进剂所得出的规律.The lighter version used liqu...
He has a great partiality for chocolate biscuits.他非常喜欢吃巧克力饼干。Sometimes, the partiality and miscarriage of justice are dis - gusting too.有时, 裁判的不公平和误判也真是令人讨厌的一件事情.Jeff: Sometimes, the partiality and miscarriage of justice...
The thick walls deadened the noise from the street.这道厚墙隔绝了街上的噪音.The driver deadened the noise of the car with a new muffler.司机安装了新的消声器减少汽车嗓音。Unhappiness had deadened her to the lives of others.她遭遇不幸,因而对别人的生活也无动于衷.My thic...
Visitors are shown an audio-visual presen-tation before touring the cellars.参观酒窖前，游客们先观看了有声的视频介绍。Audio signals can be transmitted along cables without distortion.声音信号可以通过电缆传送而不失真。audio and video cassettes盒式录音带和录像带...