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

• 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 results show that appropriate blackening agent and addition of phosphate both can improve the appearance of the passivation film.
  结果表明：发黑剂对膜层外观影响较大，选择不当可使膜层发花、挂灰；钝化液中添加磷酸（盐）能够显著改善黑色膜层外观。
• The blast left a gaping hole in the front window and shattered a glass door, twisting and blackening its metal frame.
  这起爆炸事件将征兵站前窗炸出裂孔，并将玻璃门炸得粉碎而金属框架变形发黑。
• 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。
• The procedure, properties of solution and blackening coating were discussed.
  阐述了该工艺的流程，溶液和发黑膜层的性能。
• During lunch the clouds started to advance, slinking across the blue sky, darting in front of the sun momentarily, casting long shadows across the beach, and blackening the waves.
  在我们吃午饭的时候，云层开始向前推移，偷偷地蚕食着蓝天，随时都有可能冲到太阳跟前，在海滩上留下长长的阴影，让海浪变得一片漆黑。
• 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。
• 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。
• 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。
• Research on Surface Blackening Process and Mechanism of Titanium Alloys
  钛合金表面发黑工艺研制及机理研究