1. The technician replaced the faulty booster unit in the engine.
技术人员更换了发动机中故障的增压单元。
2. The rocket requires an additional booster unit to reach orbit.
火箭需要额外的推进单元才能进入轨道。
3. Check the stability of the signal booster unit.
检查信号放大单元的稳定性。

A: Have you installed the new booster unit yet?
A：你安装新的增压单元了吗？

B: Not yet, we are still waiting for the parts to arrive.
B：还没有，我们还在等零件送到。

1) 推进单元

2) 增压组件

3) 信号增强模块

1. 推进或增压装置

e.g. The booster unit provides extra thrust.
推进单元提供额外的推力。

noun

1. A component or module designed to increase the strength, pressure, or output of a system.