sample injection的用法和樣例：
例句
- However, this is more difficult to effect reproducibly with manual injection.
無(wú)論如何，手動(dòng)進(jìn)樣的再現性總是很難控制的。 - Poor injection technique is also iden tified as a cause of retention time variability.
進(jìn)樣技術(shù)的問(wèn)題也會(huì )影響保留時(shí)間的變化，通常這個(gè)問(wèn)題更多的出現在手工進(jìn)樣中。
