门吊，Gantry crane 门式起重机（门吊）。跨度很大，用于编组和堆放集装箱的岸边起重机。
... portal crane 门式起重机 portal jib crane 门吊; 门式起重机; 门式旋臂起重机; 龙门吊车 post crane 塔柱起重机 ...
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龙门吊 gantry crane ; portal crane
龙门吊车 [机] portal crane ; gantry crane
磁力式龙门吊 magnet gantry
吊钩龙门吊 hook gantry ; hook gantry crane
半门吊 SEMI-PORTAL CRANE
电磁龙门吊 electromagnetic gantry crane
抓斗龙门吊 grab bucket gantry
轮胎式龙门吊 rubber tyred gantry crane ; Rubber-tired transtainer
半门吊配件 Semi-gantry crane accessories
一个泄水口的龙门吊受到轻微破坏，所有闸门在震后都可以开闸放水。
One of the spillway gantries was slightly damaged. However, all gates could be opened after the shaking.
我曾有过很多次与日本服务工程师共事的机会，尽管他们60多岁了，却依然爬着高达18米的龙门吊，每天上下不止20次。
Many times I worked with technicians from Japan, even more than 60 years old, they would climb a gantry crane of 18 meters high, more than 20 times a day.
巨大的龙门吊车还没有安装起来。
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