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

• 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。
• S.defense technology to China, including data on an electronic propulsion system that could make submarines virtually undetectable.
  技术中包括一种让潜艇不可侦测的电子推进系统有关的数据。
• The implication is that the effect is to make what was undetectable detectable.
  这就意味着它的效果，就是让未曾现形的密码现形。
• 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。
• It's still possible that some as-yet-unknown genetic factor, undetectable by even the most advanced tools, may explain the discordance in the study.
  仍然有可能的是，一些未知的遗传因素，即使是最先进的工具也发现不了，这些也许能解释研究中不一致的地方。
• 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。
• Although hair transplants have advanced to the stage where they are virtually undetectable ( no more plugs of hair), they still rely on moving hairs from one place to another.
  虽然头发移植技术已经发展到使种植的毛发外观自然（与周围的头发无区别），但该技术仍然要靠从一皮瓣到另一条皮瓣置换。
• In most cases, the protein that PTEN produces was undetectable in tumor cells, but clearly present in nearby normal cells.
  在大多数的病例的肿瘤细胞中都检测不到PTEN产生的蛋白，但这种蛋白存在于周围的正常组织中。
• Seven out of eight patients who got the highest dose of the drug had undetectable levels of the virus.
  八名患者中七名在服用最大剂量药物后探测不到病毒水平。
• 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；