1. 升降桥：平旋桥 swing bridge | 升降桥 lift bridge | 正交桥 right bridge

2. 升降吊桥：lift a hand 费举手之劳 | lift bridge 升降吊桥 | lift capacity 空运能力

3. 起落桥：lift blast blower 提升鼓风机 | lift bridge 起落桥 | lift check valve 升降式止回阀

4. 升降桥,吊桥：lift bracing || 升力拉条 | lift bridge || 升降桥,吊桥 | lift cage || 提升笼罐,电梯

noun

1. a bridge that can be raised to block passage or to allow boats or ships to pass beneath it

Synonym: drawbridge