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主机系泊（航行）试验并检查其附属泵与管路。
Mooring test(sea trial) of M. E. and inspection attached pumps and piping system.
youdao
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主机必须经过系泊试验和航行试验。
The main engine must undergo both mooring and sea trials.
youdao
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主机必须经过系泊试验和航行试验。
The main engine must undergo both mooring and sea trials.
youdao