blackening

英 [ˈblækənɪŋ]

美 [ˈblækənɪŋ]

v.  (使)变黑; 抹黑; 丑化; 败坏…的名誉
blacken的现在分词

化学

COCA.45535

柯林斯词典

• V-ERG （使）变黑；弄黑；涂黑
  Toblackensomething means to make it black or very dark in colour. Something thatblackensbecomes black or very dark in colour.
  1. The married women of Shitamachi maintained the custom of blackening their teeth...
     下町的已婚女性还保留着把牙齿涂黑的习俗。
  2. You need to grill the tomatoes until the skins blacken.
     你得把番茄烤到皮变黑为止。
• VERB 诬蔑；玷污；给…抹黑
  If someoneblackensyour character, they make other people believe that you are a bad person.
  1. He accused him of knowingly spreading falsehoods in an effort to blacken my character...
     他指控他蓄意散布虚假信息以玷污我的人格。
  2. They're trying to blacken our name.
     他们企图败坏我们的名声。

英英释义

noun

• changing to a darker color
  Synonym:darkening

双语例句

• Quite significantly, there was no blackening of the emulsion at the mirror's surface.
  十分引人注意地，在反射镜表面的乳胶没有变黑。
• A newly developed high efficient degreasing and rust removing solution for pre blackening treatment of high strength bolt is presented.
  根据高强度螺栓发蓝工艺的独特性，研制适用工艺要求的常温除油除锈液，在生产中应用良好。
• A newly developed blackening process which fitted for blackening of different stainless steel was introduced.
  介绍了一种适合不同种类不锈钢发黑的新工艺，讨论了配方成分和工艺参数等对发黑膜的影响。
• I.Choose the correct answer and write it on the Answer Sheet by blackening the corresponding letter Only one answer is correct. ( 20 points)
  选择正确的答案并答题纸上相应的字母涂满。每题只能选择一个答案。
• Blackening method and principle are discussed. The properties of the organic blackening film are measured.
  论述了钢铁防锈（高分子）发黑剂的热聚合-沉积发黑方法与原理，并对膜层性能进行了检验。
• There had at first been exercised against m.madeleine, in virtue of a sort of law which all those who rise must submit to, blackening and calumnies;
  起初有一种势力和马德兰先生对抗，那种势力，凡是地位日益增高的人都会遇到的，那便是人心的险狠和谣言的中伤；
• In the spring fire swept across the hills, blackening them.
  春天时的一场野火横扫群山，使原本绿树成林的山头变得焦黑。
• If this product blackening a bit, do not affect usage effect.
  本产品若略微变黑，不影响使用效果。
• The blackening agent for tin contains ammonium hydrogen fluoride, and is stable without peculiar smell; it is totally suitable for automatic production with no need of ventilation.
  由此锡发黑剂配制的锡发黑液含有氟化氢铵，稳定，没有异味，不用抽风装置，完全可以自动化生产。
• New process of blackening surfaces of iron and steel at room temperature and its possibleblackening mechanism are stated.
  报道了在钢铁表面发黑新工艺，探讨了发黑机理。