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

• A test of lower middle temperature blackening on steel part was introduced.
  介绍了钢铁件低中温发黑工艺试验。
• Brother: I wouldn't stand for this blackening of our name.
  我无法容忍这种为家族抹黑的行为。
• A Solution of Conductor Blackening of Film Lapped Wire
  解决薄膜绕包线导体发黑方法的研究
• High-frequency preheat functions IC, greatly extend the lamp's working life, so that long-term use without lamp blackening.
  IC自带预热功能，可以极大地延长灯管的工作寿命，使灯管长期使用而不发黑。
• The fundamental of blackening of brass by oxidation was described.
  阐述了黄铜氧化发黑的原理，介绍了发黑液的配制。
• 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。
• Dawn comes and you see its path-the glistening leaf, the gloaming stem, the limp, blackening garden vine.
  拂晓时分，你随处可见它的踪迹，在闪亮的叶子上，朦胧的茎干上，盘曲黝黑的藤蔓上。
• Bath formulas of blackening pretreatment and manganese series phosphating at mid-temperature were introduced.
  介绍了预黑处理液配方和中温锰系磷化液配方。
• 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。