短語詞組短語annular coil clearance 環(huán)形線圈間隙annular r clearance 環(huán)空間隙approparate annular clearance 當(dāng)量間距annular clearance seal 環(huán)狀間隙密封the largest annular clearance 最寬間隙the smallest annular clearance 最窄間隙narrow annular clearance 環(huán)形窄縫eccentric annular clearance Reynolds number 偏心環(huán)空間隙雷諾數(shù) 返回 annular clearance