短語詞組短語Over -lap Trade 重疊貿(mào)易;或重疊貿(mào)易over -lap type hatchc 背載型艙口蓋overlap ratio 縱向重合度；重疊比overlap joint 搭接接頭；重迭結(jié)合overlap region 重疊區(qū)；重疊區(qū)域 返回 over-lap