An object concealed by the new cloak , the researchers claim , is magnetically undetectable , while the cloak itself is made from materials available in many physics labs the world over .
Because the ones who received the texts were 12 percent more likely than the nonrecipients to have undetectable levels of the virus a year after being infected .
因为收到短信的那组在感染艾滋一年后病毒降至检测水平之下的概率,要比没收到短信的那组高出12%。
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。
Eventually , the original one predominates and the transplanted one vanishes ( or , at least , becomes undetectable ) .
最终,原先的免疫系统占据优势,而被移植的免疫系统销声匿迹(或者至少是不能被检测到)。
It acts as a microphone . It 's completely undetectable .
象扩音器且完全不被察觉。
All welds shall be undetectable in finished work .
完成设备的所有焊接应无法探察。
Autism is as yet undetectable before and immediately after birth . The average age of diagnosis is about five .
目前自闭症在孕期及出生后是难以即时检测的,平均确诊年龄约五岁。
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。
I 'm not saying it 's undetectable , but I do think it would be difficult to detect .
我不是说这是不到的,但我认为那将是难以察觉。
A potential enemy must be shown that the british deterrent really will work and is invulnerable to a first strike hence the need for permanent and undetectable submarine patrols .