native arsenic造句

例句与造句

1. It occurs associated with pharmacolite, picropharmacolite, weilite, haidingerite, rauenthalite, native arsenic, realgar and dolomite.
2. An ore shoot with massive native arsenic and silver was made in 1990 shortly before the end of uranium mining.
3. It is associated with other silver minerals and sulfides such as native silver, native arsenic, xanthoconite, stephanite, acanthite, tetrahedrite and chlorargyrite.
4. It's difficult to find native arsenic in a sentence. 用native arsenic造句挺难的