... 下桅 lower mast 下桅桁 lower yard 下桅肩处平台,桅楼,桅台 top ...
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... 桅索具||mast rigging 桅柱||lower mast 尾部敞开井||open stern well ...
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lower mast cross trees 下桅桅楼横桁
lower flag at half-mast 降半旗致哀
lower harness thread mast 下桅
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The department is also expected to lower its flag at Immigration Tower to half-mast today.
入境处今日亦会下半旗致哀。
youdao
The pipe racks are moved to and from their stored position by a hydraulic cylinder attached between the mast frame and the lower swing arm.
管架是通过一个装在支架框和下摇动臂之间的液压缸往返于其贮存位置的。
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