This alchemy has been practiced in university and commercial laboratories for more than 15 years, and more recently has been employed at acid-mine sites and military bases.
Bile acid reflux testing equipment currently has very limited commercial availability.
胆汁酸反流检测设备现在仍是有限的商业化。
3
FGD (Fume Gas Desulfuration) is only cosmically commercial desulfuration type in the world. It is dominating technology measure to control acid rain and sulfur dioxide pollution.