本实用新型结构简单，易于加工，装卸极为方便、快捷，而且只能定向装配，不会反装刀盘。
The utility model has simple structure, easy processing and convenient and rapid assembly and disassembly, only can be directionally assembled, and cannot install the cutter head reversely.
此外，对农业工程机械中的密封提出反装油封产生微泄漏，以形成对唇口接触区域清洗作用的设想。
In addition, an imagination of using the reverse setting of oil seal to produce the microleakage inord er to make clean the lip contact region using in the agricultural construction Mach...
应当注意，出口止回阀不能装反或出现卡死现象。
It should be noted that the outlet check valve cannot be installed backwards or stuck.
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