例句與造句

1. valeric acid ethylester
   戊酸乙酯
2. hengshun chemical industry is a modern enterprise which is the subordinate cooperation of anhuibaofeng group, mainly produces and develops fine chemicals . the company was founded in 1997 . at present, our main products are low-carbon fatty acid n-valeric acid, n-caproic acid, oenanthic acid, flavor series etc
   恒順化工廠是寶豐集團下屬的一家以生產開發(fā)精細化工產品為主的現(xiàn)代型企業(yè)，具有強大的技術開發(fā)能力與豐富的生產經驗，同時也擁有先進的生產與檢測設備
3. the synthesis of poly (-hydroxybutyrate-co-- hydroxyvalerate ) by the strain g-iiiy from different precusor was studied . it was found that the strain g-iiiy could accumulate phbv with sucrose as carbon source and propionic acid or valeric acid as precursor . in 2l self-controlled fermentor, the dry cell weight, phbv concentration and phbv content reached 35.8g ? l-1, 22.6g ? l-1 and 38.4 % respectively in the case of fermentation for 42 hours and the propionic acid as precursor
   研究了添加不同前體物，g-y菌株生產聚-羥基丁酸和聚-羥基戊酸共聚物(phbv)的發(fā)酵條件，結果表明，此菌株能以丙酸或戊酸為前體，在蔗糖為碳源的條件下合成phbv共聚物；在2l發(fā)酵罐中，以丙酸為前體，發(fā)酵16小時開始流加丙酸，根據發(fā)酵液ph值變化控制丙酸流加量，發(fā)酵42小時，細胞干重、phbv產量和含量分別達到35.8g/l，22.6g/l，63.13。
4. It's difficult to find valeric acids in a sentence. 用valeric acids造句挺難的