和精加工后
And after finishing
以上为机器翻译结果，长、整句建议使用 人工翻译 。
半精加工的主轴承安装后需要修整和调配，这样曲轴就必须拆下。
Semifinished main bearings require finishing and fitting after installation, so that the crankshaft must be taken out.
youdao
Sparated Bearing block for main transmission shaft Easy for maintenance and fix.
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