preservative

英 [prɪˈzɜːvətɪv]

美 [prɪˈzɜːrvətɪv]

n.  防腐剂; 保护剂
adj.  防腐的，（能）保存的; 储藏的; 有保护力的

复数：preservatives　

TOEFLGRE

Collins.1 / BNC.20370 / COCA.17163

牛津词典

noun

• 防腐剂；保护剂
  a substance used to prevent food or wood from decaying
  1. The juice contains no artificial preservatives.
     这种果汁不含人工防腐剂。
  2. (a) wood preservative
     木材防腐剂

柯林斯词典

• N-MASS 防腐剂；保护剂
  Apreservativeis a chemical that prevents things from decaying. Some preservatives are added to food, and others are used to treat wood or metal.
  1. Nitrates are used as preservatives in food manufacture...
     硝酸盐在食品加工业中被用作防腐剂。
  2. Though the panels come pre-treated, they needed a final sealing with two coats of preservative.
     虽然这些镶板运来时经过了预处理，但是还需要涂上两层防腐剂进行最后的密封。

英英释义

noun

• a chemical compound that is added to protect against decay or decomposition

adj

• tending or having the power to preserve
  1. timbers should be treated with a preservative substance

双语例句

• This preservative treatment shall not have any adverse effect on the subsequent paintwork.
  本防腐剂处理不得对后来的油漆工程产生不利影响。
• The preservative conditions and term of validity of the standard sample are fixed on the basis of relevant experiments.
  另外，通过对酸解烃标准样品的保存试验研究，确定了该样品的包装和有效期。
• A white crystalline salt used as a food preservative and antiseptic.
  一种白色的晶状盐，用作食物防腐剂和杀菌剂。
• A white poisonous soluble crystalline sublimate of mercury; used as a pesticide or antiseptic or wood preservative.
  汞的一种白色有毒可溶的晶状升华物，用作杀虫剂、防腐剂或木材防腐剂。
• No preservative, flavoring or coloring is added.
  不添加防腐剂、色素和香精香料。
• You can also add10 drops of colloidal silver as a natural preservative.
  你可以加入10滴液态胶粒银作为天然的防腐剂。
• Salt has a preservative effect on food.
  盐对食物有防腐作用。
• Useage: Analytical reagent, meat preservative, can also be used in the pharmaceutical industry.
  用途：分析试剂，肉类防腐剂，也用于制药。
• Study on the Preservative Effects of Boric Acid& Ethanol on Cut Gladiolus
  硼酸和乙醇对唐菖蒲切花保鲜效果的研究
• Shirley processes and marinades the olives which are all chemical and preservative free.
  雪莉亲自加工和腌泡橄榄，所有的橄榄都没有化学品和防腐剂。