基本解釋滑動軸承 徑向滑動軸承詞組短語短語plain journal bearing width 滑動軸承寬度plain journal bearing inside diameter 滑動軸承孔徑diametral plain journal bearing clearance 滑動軸承直徑間隙thrust journal plain bearing 徑向止推滑動軸承plain journal bearing更多詞組