| 释义 |
double purchase双吊杆联合作业double purchasen.（名詞 noun）(雙輪)火砲昇降滑車(= gun tackle)double purchasegun tackle(雙輪)火砲昇降滑車document.write('function myFunction(n){var c=document.getElementById("maintb").children;for(i=0;i');double purchase雙吊桿聯合作業海洋科學名詞—造船工程double purchase雙吊桿聯合作業海事 |