I step back, put the gas nozzle and hose between my body and hers, press the gas lever.
我向后退了退，把油龙头放在了我的身体和她的身体之间的地方，按了一下油杆。
Eventually we will have lowered the back pressure enough so that it is now equal to the pressure at the nozzle exit.
最终我们将有降低回压足以使现在是相等的压力，在喷嘴出口。
As for disadvantages, it requires a special nozzle and check ring to accommodate material coming back into the injection unit.
至于缺点，它需要一个特别的喷嘴和挡圈来容纳材料的回退。
Almost all cases involved the person getting back in their vehicle while the nozzle was still pumping gas.
几乎所有的案件所涉及的人得到他们的车在后面，而仍然抽气体喷嘴。
Distribution of back fall liquid film of vertical water jet of a sort of nozzle is studied.
研究了相同内部型线、不同大小喷嘴垂直水射流回落液膜的分布规律。
Distribution of back fall liquid film of vertical water jet of a sort of nozzle is studied.
研究了相同内部型线、不同大小喷嘴垂直水射流回落液膜的分布规律。
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