常見例句A down-hole autotracking well pumping unit different from the conventional pumping unit was designed. 針對抽油技術(shù)的現(xiàn)狀和存在的問題,設(shè)計了一種不同于有桿抽油方法的井下自動跟蹤式抽油裝置。Suitable for and used in the sheath cable tension to hand and the autotracking function of line tension is put voluntarily. 適合用于護套電纜張力收卷及主動放線張力自動跟蹤作用。When resonance happens,the induced voltage will reach to its maximum value.Tracking the maximum value can realize the frequency autotracking. 諧振時,感應(yīng)電壓達到最大值,搜尋感應(yīng)電壓最大值就能實現(xiàn)頻率自動跟蹤。This antenna is a 20m modified cassegrain antenna,its feed is a corrugated horn,and adopts multiple?moulding autotrack mono?pulse method. 天線采用20m卡塞格倫式天線,饋源為波紋喇叭,多模單脈沖自跟蹤方案;In this paper,one X-ray image autotrack system for weld radiographic inspection is introduced, and itsworking principle is described from the hardware and software. 介紹了一種焊縫X光圖象自動識別跟蹤系統(tǒng)。該系統(tǒng)用于焊縫的射線檢測。從硬件和軟件兩個方面描述了系統(tǒng)的工作原理。Abstract: The single toroidal non-reciprocal ferrite phase shifter that isthe key components of a phase array antenna is studied to develop the phase array antenna for autotracking synchronous communication satellite. 文摘:為了研制自動跟蹤同步通信衛(wèi)星平板相控天線陣系統(tǒng),對相控陣天線中的關(guān)鍵元件單環(huán)非互易鐵氧體移相器進行了研究。 返回 autotracking