direct nitration直接: direct; immediate硝化: nitrify; nitrification; nitr ...作用: act on; affect氮硝化作用: nitrification二硝化作用: dinitration下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:直接硝化作用,即可在微信中查询翻译