常見例句Therefore the valve is opened before TDC (BTDC) and closed after BDC (ABDC). 因此閥門在上止點(diǎn)(BTDC)之前被打開，在下止點(diǎn)(ABDC)之後關(guān)閉。Some of those lessons were learned recently while I watched MTV’s America’s Best Dance Crew (ABDC). 最近在收看MTV臺的美國最優(yōu)舞團(tuán)節(jié)目時，又縂結(jié)出幾點(diǎn)心得。 返回 ABDC