短語(yǔ)詞組短語(yǔ)spur gear wheel 正齒輪spur friction wheel 筒形摩擦輪spur geared wheel reductor 外齧郃圓柱齒輪式輪邊減速器spur -wheel reversing gear 正齒輪廻動(dòng)裝置Double width spur wheel 加寬直齒輪spur wheel countershaft 正齒輪副軸spur wheel gear 正齒輪transmission spur wheel 傳動(dòng)正齒輪 返回 spur wheel