direct substitution中文什么意思
直接取代作用
直接替代
- direct: adj. 1.笔直的,一直线的;正面 ...
- substitution: n. 1.代,代用,代替,更替,置换 ...
- direct substitution method: 直接代入法
例句与用法
- 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。 - Railways serve a different purpose to roads , and cannot be seen as a direct substitution
铁路与道路的功用不尽相同,所以铁路不能直接替代道路。 - Railways serve a different purpose to roads , and cannot be seen as a direct substitution
铁路与道路的功用不尽相同,所以铁路不能直接替代道路。