常見(jiàn)例句雙語(yǔ)例句Water infiltration of water storage pit irrigation is under varying-head conditions.蓄水坑灌條件下的土壤入滲是在變水頭作用下進(jìn)行的。The research results will have an important value for to study further varying-head infiltration and soil moisture characteristic of water storage pit irrigation .這一研究成果爲(wèi)進(jìn)一步研究蓄水坑灌條件下的變水頭入滲及土壤水分運(yùn)動(dòng)特性奠定基礎(chǔ)。In the meantime the time variation of the water level in the ditch has been taken into account, therefore the groundwater head are time-varying as the groundwater flows toward the drain system.在討論這個(gè)問(wèn)題時(shí),又考慮進(jìn)了排水溝中的水位也是隨時(shí)間而變化的,因此在地下水流動(dòng)過(guò)程中的任一瞬時(shí),其地下水頭差也是一個(gè)變量。 返回 varying-head