“升降货梯”是个多义词，它可以指升降货梯（上下层安全运输的设备）, 升降货梯（李沧图书）。
设有防止升降货梯超载的安全保护装置。
Safety protection device for preventing overload of lifting cargo ladder.
该系列升降货梯具有移动灵活，升降平稳，载重量大，操作方便等特点。
This series of elevator has the advantages of flexible movement, stable lifting, large load, easy operation and so on.
该升降货梯广泛用于厂房、宾馆、大厦、商场、车站、机场、体育场等。
It is widely used in factories, hotels, buildings, shopping malls, railway stations, airports, stadiums and so on.
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