常見例句雙語例句My new car is economical of fuel.我的新汽車節(jié)省燃料[ 不費(fèi)油]。He is economical of money.他節(jié)省金錢繕。In this article, the concepts concerning recycled concrete are defined and the feasibility to technique and economical of recycle concrete are analyzed.本文首先闡述了再生混凝土技術(shù)的概唸; 分析了再生骨料配制混凝土的技術(shù)和經(jīng)濟(jì)可行性;權(quán)威例句Well, I think possibly they see a nuclear weapons as a more economical way of defending themselves.NPR: North Korea Test Aimed at Internal Audience?While the law did not name MTBE, the chemical was a more economical means of oxygenating gasoline than the obvious alternative, ethanol.FORBES: Demonizing for DollarsSolar thermal power, which is the most economical form of solar power production, additionally consumes at least double the water of conventional power plants.FORBES: Obama Unites Global Warming Alarmists, Skeptics In Presidential Debates 返回 economical of