压力加油，压力注油
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high pressure oiling pump 高压注油泵
pressure oiling system 压力加油系统
Constant-pressure oiling 恒压加油
oiling pressure 油压
pressure-feed oiling 压力加油法
The utility model discloses an oil returning pipe which can quickly reduce the sudden increase of recoil pressure when an oiling car carries out pressure oiling for airplanes.
本实用新型公开了一种能够快速降低加油车给飞机压力加油时，反冲压力突增的回油管路。
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