undetectable

英 [ˌʌndɪˈtektəbl]

美 [ˌʌndɪˈtektəbl]

adj.  看不见的; 察觉不出的; 发现不了的

BNC.33908 / COCA.22327

牛津词典

adj.

• 看不见的；察觉不出的；发现不了的
  impossible to see or find
  1. The sound is virtually undetectable to the human ear.
     这声音实际上是人耳难以听得到的。

英英释义

adj

• barely able to be perceived
  1. the transition was almost indiscernible
  2. an almost insensible change
  Synonym:indiscernibleinsensible
• not easily seen

双语例句

• So Plato could still insist things that are invisible in the sense of undetectable can't be destroyed.
  所以柏拉图仍旧可以坚持说无形的东西，无形这里指不能检测到，是不能毁灭的。
• There we read the Buddha's words on how cream of ghee is always present within all forms and modifications of milk, but is undetectable until it has been purified of its obscuring elements.
  那里我们读到佛经的文字如何酥油的精华表现为所有的形式和牛奶的改变，但是它是无法察觉的直到它已经给从它遮蔽的元素之中纯化了。
• The Caraway and liquorice compounds reached their peaks in the breast milk two hours after consumption, while the banana compound became undetectable after one hour.
  香菜和甘草在乳汁中的含量在进食后2小时达到高峰，而香蕉化合物在1小时后就检测不到了。
• They also had undetectable leels of virus in the brain and low leels in the spleen.
  而对病毒在脑的水平及在脾中的低水平表达时他们也不能检测。
• Instead, their brain waves are very slow and weak, sometime all but undetectable.
  代之为非常缓慢和微弱的脑电波，有时甚至不能监测到脑电活动。
• Three months after ribavirin therapy commenced, HEV RNA was undetectable in serum samples from all patients.
  在开始单独使用利巴韦林治疗后，所有患者血清样本中检测不到HEVRNA水平。
• The sweet smell of success might, in other words, actually be undetectable.
  换句话说，胜利的甜蜜气味是无法觉察的。
• The advantage to criminals is that kernel malware is usually undetectable when using standard antivirus and antispyware applications.
  罪犯的优势是内核恶意软件用标准抗病毒和抗间谍应用程序通常检测不到。
• Almost undetectable with even the most delicate instruments.
  即使最精密的仪器都几乎无法察觉的。
• All welds shall be undetectable in finished work.
  完成设备的所有焊接应无法探察。