常見(jiàn)例句雙語(yǔ)例句The utility model relates to quick-positioning rotary device, which is used in an erecting electric equipment and a support frame.一種可隨即定位的旋轉(zhuǎn)裝置，是應(yīng)用于架設(shè)電子裝置及其支撐架的一裝置，包 括有：一固定座；ip.com 返回 erecting device