Wall crane is fixed to the wall cantilever crane, or may be along the wall or other support structure on the elevated track running cantilever crane.
壁上起重机是固定在墙壁上的悬臂起重机，或者可沿墙上或其他支承结构上的高架轨道运行的悬臂起重机。
The present invention relates to one kind of railway track structure, which includes floating board and spring vibration isolator to support elastically the floating board on it.
本发明涉及一种铁路的轨道结构，它包括浮置板和弹簧隔振器，浮置板弹性地支承于弹簧隔振器上。
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