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

• And the distance between driving a used Hyundai Elantra and a new Jaguar XJ is well nigh undetectable compared with the difference between motoring and hiking through the muck.
  试想一下，开一辆二手的现代伊兰特与开一辆崭新的美洲豹XJ之间的差别，肯定没有开车与徒步跋涉烂泥滩之间的差别明显。
• 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。
• But that means the soul isn't really undetectable.
  但是这就意味着，灵魂不是完全不可检测的。
• 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。
• Polar Bears are nearly undetectable by infrared cameras, due to their transparent fur.
  红外线摄像机几乎探测不到北极熊，因为它们的皮毛是透明的。
• The null result of the Michelson-Morley experiment suggests that the effects of the ether are undetectable.
  迈克耳孙-莫雷实验的否定结果使人想到，以太的效应是不能检查到的。
• Fine-grained homogeneous rock ( such as basalt) containing minerals undetectable by the naked eye.
  成分细密的同质岩石（如玄武岩）含有肉眼看不见的矿物。
• Thus, although HAART may achieve undetectable virus levels in the blood, virus replication in the testis may permit continued spread of the virus.
  这样，即使高强度的抗病毒治疗能够使得血液中病毒达到检测不到的水平，睾丸组织中病毒的复制仍然可以成为传染源。
• The peak force and peak pressure greatly increased in some donor great toes, but distinctly decreased, even undetectable for some others.
  部分供足砪趾的峰压力、峰压强异常增高，而另有部分供趾的则明显降低甚至缺失；
• Almost undetectable with even the most delicate instruments.
  即使最精密的仪器都几乎无法察觉的。