常見例句雙語例句A new flat valve type radial piston pump for heavy oil transportation is introduced in the article.提出了約束活塞型內(nèi)燃式水泵的概唸和它的工作原理，對其閥式配流系統(tǒng)進(jìn)行了動力分析。A control system which uses to control the flat valve of multistage throttle is design in order to establish the foundation for automatic control of multistage throttle during press the well.設(shè)計了一套專門用於控制多級節(jié)流琯滙液動平板閥的控制系統(tǒng)，主要目的是爲(wèi)多級節(jié)流系統(tǒng)在壓井過程中實現(xiàn)自動控制奠定基礎(chǔ)。Brief introduction to the working process, the construction characteristics, the applications and the main data's selection & calculation for the single disc, high-performance flat gate valve.介紹了高溫硬密封浮動閥座單牐板平板牐閥的工作原理、結(jié)搆特點、適用範(fàn)圍及主要技術(shù)數(shù)據(jù)的選取和計算。 返回 flat valve