名词（昔日的）开合桥，吊桥，活动桥

1. 闭合桥：draw-off tap 放水龙头 | drawbridge 闭合桥 | drawing 图则

2. 吊桥：drain, power 电源泄漏 | drawbridge 吊桥 | drift 漂移

3. 可开闭的吊桥：drawbar 挂钩 | drawbridge 可开闭的吊桥 | drawdown 减少

4. 开合桥：drawbench 拉拨机 | drawbridge 开合桥 | drawdown analysis 压降分析

1. 吊桥;开合桥
A drawbridge is a bridge that can be pulled up, for example to prevent people from getting into a castle or to allow ships to pass underneath it.

noun

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

Synonym: lift bridge