常見(jiàn)例句雙語(yǔ)例句The causes of relatively lower power factor in the small power irrigation pumping station were analyzed.針對(duì)小型電力提灌站功率因數(shù)偏低的問(wèn)題,分析了其產(chǎn)生的原因。The author puts forward the conception of irrigation pumping station's economical running and deduces its mathematical equation in this paper.文中通過(guò)對(duì)灌溉泵站經(jīng)濟(jì)運(yùn)行探討,提出灌溉泵站經(jīng)濟(jì)運(yùn)行的概念,并推導(dǎo)出其數(shù)學(xué)方程式。In this paper, based on the successive two years data in Wangdu Irrigation Experimental Station, crop-water production function in Hebei Plain were simulated.本文應(yīng)用望都實(shí)驗(yàn)站連續(xù)兩年冬小麥的不同灌水處理下對(duì)應(yīng)的產(chǎn)量的試驗(yàn)資料,對(duì)河北平原的水分生產(chǎn)函數(shù)進(jìn)行了擬合。 返回 irrigation station