gain control的用法和樣例：
例句
- Special gain controls are used to regulate the amplitude levels at the beginning and end of the record.
為了調節記錄的開頭部分和尾端的振幅電平，通常採用專門的增益控制。 - You'll also gain control of some of Webb's units, including another repair unit and a couple more artillery units, as well as an anti-air unit.
你還增益控制一些韋伯的單位，包括修復另一組一對夫婦更炮兵部隊，以及防空部隊。
