常見(jiàn)例句雙語(yǔ)例句BC-DH2004 catalyst was used in dehydrogenation of sec-butyl alcohol(SBA)to prepare methyl ethyl ketone(MEK).採(cǎi)用BC-DH2004催化劑進(jìn)行仲丁醇脫氫郃成甲乙酮的研究。 返回 butyl alcohol-sec