There is no a systemic management regular instituted according to the coal cargo on board in the voyage to transport coal properly.
航行中未能结合所运载的煤的性质，制定出一套系统的管理规范，用以妥善地运输煤货。
There is no a systemic management regular instituted according to the coal cargo on board in the voyage to transport coal properly.
航行中未能结合所运载的煤的性质，制定出一套系统的管理规范，用以妥善地运输煤货。
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