So there is no evidence to show the liquid oil come from crankcase ventilation and remain in the manifold assembly .
因此，没有证据显示这些液体机油来自曲轴箱通风和停留的各种装配管道…
2
The design optimization of jig construction, jig body, locating mechanism of crankcase cores, jacket cores assembling vehicle and jig supporter was discussed.
对夹具结构、夹具本体、轴箱芯定位机构、水套砂芯组芯小车及夹具支架的设计优化进行了讨论。
3
Shaking screen on crank-connecting rod for reciprocating motion to the sieve case.