A.電控氣動風(fēng)閥 B.滑動風(fēng)閥 C.數(shù)控風(fēng)閥 D.旋轉(zhuǎn)風(fēng)閥
A.0.21-0.30 B.0.31-0.40 C.0.09-0.21 D.0.03-0.09
A.可比系數(shù) B.沖程系數(shù) C.環(huán)比系數(shù) D.循環(huán)系數(shù)