常見例句雙語例句Directional control valves can be used for controlling direction of oil flow so as to operate start up, stop and moving direction of actuators in a hydraulic circuit.在液壓系統(tǒng)中控制油方向,控制執(zhí)行元件的啟動、停止及運(yùn)動方向。按操作方式分為:電磁、電液、液控、手動、凸輪等方式。yucihydraulics.comTht article GPS positioning technology, DC servo technology, research and design a set of moving targets can implement automatic tracking of the directional antenna control system.文章以GPS定位技術(shù)、直流伺服技術(shù)為基礎(chǔ),研究設(shè)計(jì)一套能夠?qū)σ苿幽繕?biāo)實(shí)行自動跟蹤的定向天線控制系統(tǒng)。 返回 directional moving control