| chemical |
related to the science of chemistry; a substance characterized by a definite chemical molecular composition.
Ãâó: www.wef.org/publicinfo/newsroom/wastewater_glossar...
|
|---|---|
| chemical element |
a heavy bluish gray metallic element that bends easily. Source: galena, cerussite. Use: car batteries, pipes, solder, radiation shields. Symbol Pb
Ãâó: encarta.msn.com/dictionary_1861625368/lead.html
|
| chemical |
Category: General pregnancy Pregnancy documented by a blood or urine test that shows a rise in the level of the human chorionic gonadotropin (hCG) hormone. Find out more about Pregnancy, chemical: Articles | Books/products
Ãâó: pregnancyandbaby.com/read/articles/2455.htm
|
| chemical |
As broadly applied to the chemical industry, an element or a compound produced by chemical reactions on a large scale for either direct industrial and consumer use or for reaction with other chemicals.
Ãâó: web.mit.edu/environment/ehs/topic/HazCommTerms.htm...
|
| chemical formula |
A description that uses numbers and symbols of elements to describe the propor
Ãâó: www.nksd.net/schools/nkhs/staff/john_daneau/cp_glo...
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|