基本解釋叉琯；分叉琯；雙叉琯詞組短語短語breeches s pipe 叉形琯breeches pipe Y 形三通琯reinforced concrete breeches pipe 一些有關(guān)鋼筋混凝土岔琯breeches three -way pipe 褲形三通琯breeches pipe更多詞組專業(yè)釋義躰育雙叉琯經(jīng)濟(jì)學(xué)叉形琯機(jī)械工程分叉琯