請: request; ask打開: open; unfold閥: established house or power g ...请打开电视: please turn on the tv请打开书本: open your books please请打开电风扇: please turn on the fan请打开门窗散散烟: please open the door and windows to let the smoke out请打开这个袋子: please open this bag请打开这件行李: please open this bag开阀: lift valve常开阀: normal open valve; normally open valve敞开阀: full-opening valve断开阀: disconnecting valve快开阀: quick opening valve; quick-opening valve; snap action valve起开阀: fail-closed valve全开阀: clear way valve; clearway valve双开阀: db valve速开阀: quick-opening valve突开阀: pop valve先开阀: jockey valve打开: 1.(揭開; 拉開; 解開) open; unfold 短語和例子 打開包袱 untie a bundle; 打開蓋子 take off the lid; 打開鐵鎖鏈 break open the iron shackles; 打開降落傘 slip parachute2.(接通電路) turn on; switch on:打開收音機[電燈]turn on the radio [light]3.(攻開) break through 短語和例子 打開一條出路 break through an encirclement or fight a way out4.(展開; 擴展) open up; spread 短語和例子 打開地圖 spread out the map; 打開局面 open up a new prospect; 打開思路 broaden one's scope of mind; 打開眼界 widen one's horizon; 打開信號 opening signal请打电话: for more detailed information please call; free children admission with full paying adult请打扫房间: make uthe room /immediate maid service请打一下票: tickets,please; want to know递开阀杆: graduating valve lever