land
... 油腔 oil recess, oil pocket 封油面 land 补偿器（静压轴承〕 compensator (hydrostatic bearing) ...
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特殊端面油封 Special Surface Oil Seal
径向轴油封横断面 RWDR-Querschnitt
转子端面油封装置 rotor side oil seals
喷油器密封面 injector sealing surface
因此主封油面是处于油压下工作。
Accordingly, under oil pressure, the main oil seal surface can work.
youdao
本实用新型的要点是：在主封油面的另一侧还有一个封油唇口。
The utility model has a main point that the other side of the main oil seal surface is also provided with an oil seal lip.
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