1·It expels gas to descend, and expels water from trim bladders to rise.
它通过排出气体来下降，并通过把水排出气囊来上升。
2·With a thin scream, like a tea-kettle whistle, the medusa starts to descend.
随着一声像茶壶煮开了水那样的微弱的叫声，水母开始下降。
3·The pilots did descend to the wrong altitude then, thinking they were following the air controllers' instructions.
飞行员确实以错误的高度下降，并以为他们遵循了空中管制员的指示。
4·It would need to deploy a parachute, descend through the clouds and transmit a GPS coordinate to a cell phone tower.
它需要打开降落伞穿过云层下降，把 GPS 坐标发射到手机基站。
5·This morning I simply dived into deep water off the rocks nearest to the house, where they descend almost sheer, yet with folds and ledges enough to make a precarious stairway.
今天早上我只是在最靠近房子的礁石深水处潜水。 那里的石头陡然下降，多处坑壑和暗礁形成了一段不稳固的阶梯。
1·As you descend, suddenly you see at last the hidden waterfall.
你往下走，最终会突然发现那个隐秘的瀑布。
—— 《柯林斯英汉双解大词典》
2·Now, on a large screen, I saw his plane land and the soldiers descend.
现在，从大屏幕上，我看到了他乘坐的飞机降落，士兵走下飞机。
3·A remote control strapped to one of his wrists offers several modes of action: "stand", "sit", "walk", "ascend 'and" descend "(the last two being pertinent to climbing and coming down staircases)."
绑在他手腕上的遥控器提供多种行动模式：“站”，“坐”，“走”，“上”和“下”(最后两种模式与爬楼梯相关)。
4·The Mon Calamari are able to descend to depths of up to 30 meters below sea level without requiring breathing or pressure apparatus.
蒙卡拉马里人能够一口气潜入海面下最深30米处，不需要呼吸也不用相关的压力装置。
5·But once to altitude he when that always seems to be a small face of innocent han han he can not descend a hand!
可是一旦对上他那张总显得很无辜的憨憨小脸时，自己就下不了手！
1·And beware all who descend from those skies, for they are the harbingers of death and destruction.
同时要提防从那些天空下来的所有东西，因为那是死亡和毁灭的先兆。
2·You can ride the escalator up but have to descend on foot.
你可以搭电梯上去，但要自己走下来。
3·In future, astronauts will be required to descend from a spaceship while it is still in space and to return to it.
将来，将要求宇航员从停在太空里的飞船中下来并且能回到飞船中去。
4·Exit from the White Dagoba from the north side and descend the Northern Slope of the hill.
从白塔北面的出口出来，顺着山从北坡下来。
5·In future, astronauts will be required to descend from a spaceship while it is still in space and return to it.
将来，将要求宇航员从停在太空里的飞船中下来并且能回到飞船中去。
1·The test results show that the pressure descend of new filter conform to the requirement of standard, the filtration efficiency is 63.04%, and the traditional filter is no less than 60%.
试验结果表明，新型滤器的压力降完全符合规定要求，原始滤清效率为63.04%，而传统滤器的原始滤清效率仅为60%。
2·The smoke layer can been in definite height and not descend when the smoke exhaust rate is larger than that of generating smoke.
当中庭排烟速率大于或等于产烟速率时，烟气层就能够保持在一定高度上不降下来。
3·To descend by means of a parachute.
跳伞，伞降用降落伞。
4·Descend blood grease medicine kind is more, classification is also more difficult.
降血脂药种类较多，分类也较困难。