基本解釋[環(huán)境科學(xué)技術(shù)]退化山場英漢例句雙語例句The developing biomass is 2.48 times(developed for 4 years) and 8.74 times(developed for 7 years) than that of undeveloped, which improves remarkably the vegetation status in devolution mountain.開發(fā)后生物量較開發(fā)前分別增長了2.48倍（開發(fā)4年）和8.74倍（開發(fā)7年），有效改善了退化山場的植被狀況。devolution mountain更多例句專業(yè)釋義環(huán)境科學(xué)技術(shù)退化山場The results showed as follows:1. Ideal value of NPP of natural vegetation is 6.75 t·hm~(-2)·a~(-1)(dry substance) in representative experimentation area of devolution mountain in Hebei.研究結(jié)果如下:1.河北省退化山場典型樣點(diǎn)試驗(yàn)區(qū)自然植被的凈第一性生產(chǎn)力理想計(jì)算值為6.75t·hm~(-2)·a~(-1)干物質(zhì)。