extractable organic halogens造句

例句与造句

1. Constituents of particular concern include pH, nitrogen ( total mass ), major soluble ions ( Ca, Mg, Na, Cl ), electrical conductivity, total metals, extractable organic halogens, oil content, and hydrocarbons.
2. It's difficult to find extractable organic halogens in a sentence. 用extractable organic halogens造句挺难的