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1。Heavy mass (vibration damper or front disc) at cranksahft free end? 我看到后面的格子填的是YES 求解谢谢
2。No. of bearing(s) from after stern tube bearing andmain bearings. 格子填的是1 后方有一排红字Minmum 4 bearings load test result include main bearing#1~#3 are required for evaluation of alignment condition between engine and propusion shaft line with whole crank web deflection data.
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