1·The thesis studies mainly the drive and control technique of aeronautic linear DC step motor(LDCSM) used in emergency discharging oil valve on airplane.
本文针对“十五”航空基金项目—新型航空用直线直流电动机驱动控制系统，研究了飞机应急放油阀用航空直线步进电动机的驱动控制技术。
2·If the 450-ton valve at the wellhead can be turned on, the oil flow should stop, and the spill could be ended quickly.
如果井口450吨重的阀门可以可以关上，油流就可以停止，那么溢油很快就可以停下来。
3·The oil stored in tanks in a former refinery was sabotaged when someone opened the main valve.
有人打开了石油的主要阀门，导致油厂内的石油倾泻而出。
4·Police say the saboteur must have had a working familiarity with the refinery to be able to open the tank's main valve and send tons of oil pouring out.
警方表示，嫌疑犯熟悉油厂事务，而且能打开阀门，让好几百万吨的石油哗啦啦的流走。
5·Most of the thick oil at startup actually goes through the bypass valve back to the engine oil sump and not into your engine oil ways.
大多半厚(粘稠)的机油在启动时实际上通过旁支泄压阀又流回到油底壳而不能进入策动机油道。
6·Exceptional thermal stability and oxidation resistance prevents in-service oil degradation which contributes to filter blocking and sludge formation in the oil galleries, crankcase and valve train.
优异的热稳定性和抗氧化性防止在职石油降解这有助于阻止和污泥过滤器在石油画廊，曲轴箱和阀门列车编组。
7·After a considerable period of time, oil, gas and other PCV valves in its internal deposition, PCV into clay colloid valve jam, thereby improving the crankcase internal gas pressure.
天长日久，机油、汽油及其它浓缩物在PCV阀内部沉积成油泥胶体，造成PC V阀堵塞，从而提高了曲轴箱内部的气体压力。
8·The fitting of a heavy, three valve-cap on the Macondo oil well on July 15th marked the opening of just such a new act in the drama of the Deepwater Horizon, its loss and its aftermath.
7月15日，Macondo（马贡多）油井装上了一个沉重的三阀井盖，标志着深水地平线号这场戏剧（包括损失和后果）新的一幕的开始。
9·An often overlooked function of oil is ring and valve sealing.
一个经常被忽视的功能是环和油阀密封。
10·According to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.
针对这一难题，研制了套管防盗油密封阀，并配套应用了井下油气分离器与气举阀助流举升工艺技术。