... lower lock head 下游闸门顶盖 lock head wall 闸首墙 quick lock bayonet type head 错齿式机头 ...
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lock bolt head wall 闸首墙
lock head wall
船首壁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Temperature control measures for side wall concrete construction in the sixth lock head of the permanent navigation locks at the Three Gorges Project during hot season are briefly given in the paper.
简述了三峡工程永久船闸六闸首边墙混凝土高温季节施工的温控措施。
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