undetectable造句

1、They are intangible, immaterial and would be undetectable if the passengers stopped moving.
他们是无形的，非物质的，而且即使旅客都停下来也无法察觉。

2、Look, it says here that the noise from it should be undetectable by other people.
看，这里说的是它发出的声音应该不会被其他人察觉。

3、All welds shall be undetectable in finished work.
完成设备的所有焊接应无法探察。

4、The sound is virtually undetectable to the human ear.
这声音实际上是人耳难以听得到的。

5、These fractures may be undetectable on routine images from the radiographer.
这种骨折在一般的放射照像的图片中很可能不会被发现。

6、Almost undetectable with even the most delicate instruments.
即使最精密的仪器都几乎无法察觉的。

7、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，因为它们的毛是透明的。

8、It is undetectable by metal screening devices.
它是金属探测器无法探测到的。

9、The Windows are very clean and have undetectable levels of trace elements.
窗体很干净痕迹元素水平低到无法觉察。

10、The 40 people with undetectable levels of nicotine and cotinine were classified as nonsmokers;
40位未检出尼古丁和可替宁的志愿者被归类为“非烟民”；