trolley crane
常见例句
- Double-trolley bridge crane is a kind of bridge crane.
雙小車橋式起重機是橋式起重機的一種。 - This paper introduces the historical development of the double trolley quayside container crane concisely.
岸邊集裝箱起重機是集裝箱碼頭進行船舶裝卸作業的主要設備。 - The four corners of the frame are provided with four pulleys. Wire ropes pass round the pulleys and are tightened on the reel drum of a crane trolley.
框架上麪的四角裝有四衹滑輪，鋼絲繩繞過滑輪曏上系於起重行車的卷筒上。
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