direct substitution发音

意思翻译

[化学]直接取代

相似词语短语

substitution───n.代替；[数]置换；代替物

substitution cipher───代替密码；替代密码；n.代用密码（或记号）

substitution effect───替代作用；替代效应

substitution method───代入法；替换法；代换法; 代入法; 代替法; 替代法

substitution drill───替换训练；替换练习；代换法

direct───adv.直接地；正好；按直系关系；adj.直接的；直系的；亲身的；恰好的；vi.指导；指挥；vt.管理；指挥；导演；指向

substitution bias───替代偏误

shortening substitution───缩短替代

direct flights───直飞航班，直达班机

双语使用场景

Previously, Duchateau (2005) tested a direct substitution of a WPC sill plate for PPT lumber in light-frame walls.───此前，Duchateau(2005)做了轻型框架结构中用WPC直接替代PPT木质板材做地基木的测试。

Companies, which account for 80% or more of revenue from letters at postal firms, have slashed direct-mail advertising budgets and embraced substitution as a way to reduce costs.───收入中超过80%来自公司企业的信件投递业务，而这些大主顾现在却不得不大幅减少自身的广告邮件预算并大量使用电子邮件以降低公司的运营成本。

Through imitation Japan, Germany, Italy and other countries products, direct import substitution.───通过日本、德国、意大利等国产品，直接替代进口。

Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.───大多数连于芳核能被直接取代的基团仅限于重氮盐。

Pollution of the environment, but direct substitution gasoline, diesel oil clean automobile part and mechanical part.───不污染环境，可直接取代汽油、柴油清洗汽车元件及机械元件。

Progress of Synthesis of Vinyl Chloride Process from Direct Substitution Chlorination of Ethylene───乙烯直接取代氯化合成氯乙烯的研究

Study on synthesis of Ag coating Cu bimetallic nano-powders by direct substitution reaction───直接置换法制备包覆型纳米铜-银双金属粉末

英语使用场景

Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.

Previously, Duchateau (2005) tested a direct substitution of a WPC sill plate for PPT lumber in light-frame walls.