短語詞組短語channel l stopper 溝道截?cái)喹h(huán)channel l stopper impurity 溝道截?cái)喹h(huán)襍質(zhì)channel l stopper region 溝道截?cái)鄥^(qū)channel stopper impurity 溝道截?cái)喹h(huán)襍質(zhì)channel stopper region 溝道截?cái)鄥^(qū) 返回 channel stopper