direct substitution的意思

direct substitution中文翻譯：

[化學]直接取代

相似詞語短語

substitution───n.代替；[數]置換；代替物

substitution cipher───代替密碼；替代密碼；n.代用密碼（或記號）

substitution effect───替代作用；替代效應

substitution method───代入法；替換法；代換法; 代入法; 代替法; 替代法

substitution drill───替換訓練；替換練習；代換法

direct───adv.直接地；正好；按直系關系；adj.直接的；直系的；親身的；恰好的；vi.指導；指揮；vt.管理；指揮；導演；指向

substitution bias───替代偏誤

shortening substitution───縮短替代

direct flights───直飛航班，直達班機

雙語使用場景

Previously, Duchateau (2005) tested a direct substitution of a WPC sill plate for PPT lumber in light-frame walls.───此前，Duchateau(2005)做了輕型框架結構中用WPC直接替代PPT木質板材做地基木的測試。

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.───收入中超過80%來自公司企業的信件投遞業務，而這些大主顧現在卻不得不大幅減少自身的廣告郵件預算并大量使用電子郵件以降低公司的運營成本。

Through imitation Japan, Germany, Italy and other countries products, direct import substitution.───通過日本、德國、意大利等國產品，直接替代進口。

Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.───大多數連于芳核能被直接取代的基團僅限于重氮鹽。

Pollution of the environment, but direct substitution gasoline, diesel oil clean automobile part and mechanical part.───不污染環境，可直接取代汽油、柴油清洗汽車元件及機械元件。

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───直接置換法制備包覆型納米銅-銀雙金屬粉末

英語使用場景

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.