rail crane

基本解释

Guo-rail crane is a kind of bridge cranes.
过轨起重机是桥式起重机的一种。
Signal Rail Crane and Control Winch, Double Speed Column Winch;
单轨吊、调度绞车、双速回柱绞车；
The partially slewing crane is a kind of representative rotary rail crane, which is also the first developed type in our country.
门座起重机是我国研制最早、具有重要代表性的一种旋转式有轨起重机。

David Crane, Special Advisor to the Governor and Chair, High Speed Rail Commission, California.
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Beijing News on Monday quoted people from the China Railway No. 3 Engineering Group as saying that the pits were dug to make room for a giant crane to lift away the rest of the carriages that remain on the overhead rail tracks.
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