acidity

英 [əˈsɪdəti]

美 [əˈsɪdəti]

n.  酸味; 酸性

复数：acidities　

TOEFL化学

BNC.13106 / COCA.17453

牛津词典

noun

• 酸味；酸性
  the state of having a sour taste or of containing acid

柯林斯词典

• N-MASS 酸
  Anacidis a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts. Some acids burn or dissolve other substances that they come into contact with.
  1. ...citric acid...
     柠檬酸
  2. Acids in the stomach destroy the virus.
     胃酸能杀死病毒。
• ADJ-GRADED （物质）含酸的，酸性的
  Anacidsubstance contains acid.
  1. These shrubs must have an acid, lime-free soil.
     这些灌木必须生长在不含石灰的酸性土壤环境。
• ADJ-GRADED （水果或饮料）酸味的，酸的
  Anacidfruit or drink has a sour or sharp taste.
  1. These wines may taste rather hard and somewhat acid.
     这些酒可能喝着比较冲并且有股酸味。
• ADJ-GRADED 尖刻的；刻薄的
  Anacidremark, oracidhumour, is very unkind or critical.
  1. This comedy of contemporary manners is told with compassion and acid humour.
     这部当代风尚喜剧杂糅了悲悯的情怀和尖酸的幽默。
• 麦角酰二乙胺
  The drugLSDis sometimes referred to asacid.
• See also:amino acidhydrochloric acidnitric acidnucleic acidsulphuric acid

英英释义

noun

• the property of being acidic
  Synonym:sournesssour
• pH values below 7
• the taste experience when something acidic is taken into the mouth
  Synonym:acidulousness

双语例句

• In hot regions, extra tartaric acid is added to'correct'the acidity.
  在热的地区，需加入额外的酒石酸来“纠正”酸度。
• How do you test the acidity of soil?
  你怎样测试土壤的酸度？
• Both nitrogen and sulphur emissions are major contributors to soil acidity and environmental pollution.
  氮和硫的排放物是造成土壤酸度和环境污染的两大主要来源。
• Grown in volcanic soil, this fair trade coffee is full-bodied with a light acidity and hints of cocoa.
  生长在火山岩土壤里，是公平贸易咖啡，优异的醇度，明亮的酸度和暗暗的可可味。
• Hard: Firm, resulting from high acidity or tannins.
  涩口：由于酸度和丹宁含量高而引起的麻辣的感觉。
• The influence on precipitation acidity in different time and space is not alike due to geographical and meteorological conditions.
  由于当地地理位置和气象条件的差异，不同的时间和不同空间里影响的程度也不同。
• Research also suggests that the high acidity of energy and sports drinks can erode enamel.
  研究还表明，酸度高的能量和运动饮料可以侵蚀牙釉质。
• The aquation of JM216 and the effects of acidity and light on the stability of JM216 were studied.
  研究了JM216的水合反应动力学，并考察了光照、稀酸对其稳定性的影响。
• The effect of acidity on the synthesis of phenylbiguanide from the additive reaction of aniline with dicyandiamide was studied.
  研究了酸度对苯胺与双氰胺加成反应生成苯基双胍的影响。
• The conversion of propylene glycol was mainly affected by the surface acidity of the catalyst.
  乙醛和丙二醇的缩醛化反应表明丙二醇的转化率主要受催化剂表面弱酸度的影响。