double-deck block 二次拉丝机
double deck block 二次拉丝机
deck lead block 甲板导索滑车
double-deck draw block 双层拉线鼓轮
deck drawing block 双层拉线鼓轮
deck guide block 甲板导向滑车
The halyard typically rises from the head of the sail to a block at the head of the mast and back down to deck level, from where it is pulled up to raise the sail.
升降索通常从帆的前侧延伸到桅杆顶端，然后下降到甲板平面，在甲板上拉起升降索就能升起船帆。
NORTH VIEWING NODE This sculptural block landing will sit out in the water, accessed by a narrow timber deck.
北面观景点这个雕刻的木平台凌驾于水中央，由一条窄窄的木栈道连通着。
The article analyzes the crushing reasons of the cement concrete deck paving course and slab block, and puts forward the relative countermeasures and measures.
该文分析了水泥混凝土桥面铺装层及板块破碎原因，并提出了相应对策及措施。
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