| 释义 |
〔troffer〕An inverted, usually metal trough suspended from a ceiling as a fixture for fluorescent lighting tubes.槽形支架：一种通常是金属制成的，从天花板上垂下用作普通荧光照明管的支架的反转槽〔reversion〕A turning away or in the opposite direction; a reversal.反向，反转：偏离或转向相反方向；逆转〔reverse〕To turn around to the opposite direction.反转：转向相反方向〔boxhaul〕box 1[to confine, reverse] box1[限制，反转] |