舱盖板压紧装置 cleating device ; dogging device
压紧盖板
Clamp plate
以上为机器翻译结果，长、整句建议使用 人工翻译 。
全船6个货舱口均系木质舱盖板，面上以三层油布复盖。再以木楔压紧。
All 6 hatches of the vessel had been closed by wooden boards, covered with 3 layers of tar Pauline and held down by wooden wedges.
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