Home > Term: parts per million (ppm)
parts per million (ppm)
Number of parts of a substance found in one million parts of a particular gas, liquid, or solid.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Natural environment
- Category: Coral reefs
- Organization: NOAA
0
ผู้สร้าง
- Grpu76
-
(Platinum) 4174 points - 100% positive feedback
