open crank case 开式曲柄箱 ; 开式曲轴箱
Crank case door 曲柄箱导门 ; 曲轴箱门
crank case explosion 曲轴箱爆炸
crank case relief door 曲轴箱安全门
crank-case oils 又称曲轴箱油
split type crank case 拼合式曲柄箱
N the metal housing that encloses the crankshaft, connecting rods, etc, in an internal-combustion engine, reciprocating pump, etc (内燃机、往复泵等的)曲轴箱
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