N-MASS 防腐剂;保护剂 A preservative is a chemical that prevents things from decaying. Some preservatives are added to food, and others are used to treat wood or metal. 防腐剂;保护剂
Nitrates are used as preservatives in food manufacture.
硝酸盐在食品加工业中被用作防腐剂。
Though the panels come pre-treated, they needed a final sealing with two coats of preservative.
ADJECTIVE | VERB + PRESERVATIVE | PHRASESADJECTIVE➤food, wood食物/木材防腐劑▸➤artificial, chemical, synthetic人造/化學/合成防腐劑◇Our products contain no artificial preservatives.我們的產品不含人造防腐劑。VERB + PRESERVATIVE➤apply, treat sth with使用防腐劑;用防腐劑處理某物◇Make sure the panels are treated with a wood preservative.確保鑲板用木材防腐劑處理過。➤contain含防腐劑◇The snacks contain no artificial preservatives, sugar, or salt.這些零食不含人造防腐劑、糖或鹽。PHRASES➤additives and preservatives, additives or preservatives添加劑和防腐劑;添加劑或防腐劑◇a range of traditional cakes made with no additives or preservatives一系列沒有添加劑或防腐劑的傳統糕點