常見(jiàn)例句雙語(yǔ)例句Reductant in the reaction of elements in valence increased.在反應(yīng)中還原劑中元素的化合價(jià)升高。OK, so now the question is, how do we know the first place that this is a suitable reductant?好的，現(xiàn)在的問(wèn)題是，我們?nèi)绾文苤赖谝徊街?鎂是一個(gè)合適的還原劑？It introduces the production situation and problems which coke is partly replaced by semicoke coal as reductant in ferroalloy production.介紹了鐵合金生產(chǎn)以半焦煤代替部分冶金篩下焦炭作還原劑的生產(chǎn)情況和出現(xiàn)的問(wèn)題。原聲例句OK, so now the question is, how do we know the first place that this is a suitable reductant?好的，現(xiàn)在的問(wèn)題是，我們?nèi)绾文苤赖谝徊街?鎂是一個(gè)合適的還原劑？麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選 返回 reductant