短語詞組短語valve stem bush [機]閥桿襯套reversing valve rod bush 廻動閥桿襯套valve e bush 閥襯intake valve guide bush 進氣門導琯襯套valve collet bush 氣門鎖夾套exhaust valve guide bush 排氣氣門導琯襯套engine valve guide bush 柴油機氣門導琯valve pin bush 閥針套regulating valve seat bush 調(diào)節(jié)閥座襯套 返回 valve bush