短語詞組短語steel bend stay vane 鋼板彎的固定導(dǎo)葉upstream edge of stay vane 固定導(dǎo)葉進(jìn)水邊stay vane of spiral casing 蝸殼內(nèi)的固定導(dǎo)葉down -stream edge of stay vane 固定導(dǎo)葉出口邊 返回 stay vane