短語詞組短語channel l stopper 溝道截斷環(huán)channel l stopper impurity 溝道截斷環(huán)襍質(zhì)channel l stopper region 溝道截斷區(qū)channel stopper impurity 溝道截斷環(huán)襍質(zhì)channel stopper region 溝道截斷區(qū) 返回 channel stopper