... milestone state 里程碑状态 project milestone 工程项目重大事项; 项目里程碑 lewisson; lewis; lewis anchors 吊楔 ...
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... lewisite 降落伞式雷达干扰发射机 氯乙烯基二氯胂 lewisson 吊楔 起重爪 lexical 词典的 词法的 ...
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N a lifting device for heavy stone or concrete blocks consisting of a number of curved pieces of metal or wedges fitting into a dovetailed recess cut into the block 吊楔
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