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

• 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。
• 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。
• 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。
• Picking locks is now undetectable to everyone standing around watching.
  开锁现在不被那些在周围守卫的人注意。
• 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。
• Be careful to benchmark before making a decision on this basis: the overhead of Spring AOP proxying is all but undetectable in normal use.
  在这个基础上做决定前要小心基准：SpringAOP代理的负载在通常使用中是无法觉察到的。
• 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。
• It was more likely that the virus was still present but had retreated to undetectable levels in MR stimpson's blood.
  这更象是病毒依然存在，只是血液中病毒的量已经少到检测不出的水平。
• 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 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。