open car敞篷车
openadj.开着的;开放的;公开的v.打开;张开;展开;摊开;开始(某事物);开张;营业;以…开头;宣布启用n.户外;公开
open-circuit time constant开路时间常数
open-back inclinable press后开式可倾斜压力机,前后送料可倾式冲床
open-diaphragm loudspeaker开放式膜片扬声器
open-pollinated tree seeds自由异花传粉树种子
open nucleus breeding system开放式良种登记册
open teaching of mathematics开放式数学教学
open-top fumigation device开顶式熏气装置
open-ended steel pipe pile开口钢管桩
open-closed loop PD-type开闭环PD型
"an alfresco lunch"
"an open-air theater"