Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
Arabic
Basque
Bulgarian
Catalan
Croatian
Czech
Danish
Dutch
English
Estonian
Finnish
French
German
Greek
Hungarian
Irish
Italian
Japanese
Latvian
Lithuanian
Maltese
Norwegian Bokmål
Polish
Portuguese
Romanian
Russian
Slovak
Slovene
Spanish
Swedish
Turkish
Ukrainian
G
o
o
g
l
e
|
Forvo
|
+
to phrases
标记
biāo jì
gen.
markering
标记
1. 少量的很容易被发现的物质,可用于跟踪和量化对于其他普通检测方式不可见或不能检测的材料流动或生物运动。 2. 一种含有同位素元素的物质,其少量可能被纳入样本,用以跟踪化学、生物或物理过程中该元素的过程,此时同位素也与较大的样本一起参与过程。示踪剂可能是放射性的,在这种情况下观测是通过测量放射性而实现的。
biāo jì
environ.
markör
标记
:
5 phrases
in 2 subjects
Electronics
2
Environment
3
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Add
|
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Report an error
|
Get short URL
|
Language Selection Tips