关于allotrope的百科

• allotrope造句怎么写

• atoxicnonmetallicelementrelatedtosulfurandtellurium;occursinseveralallotropicforms;astablegraymetallikeallotropeconductselectricitybetterinthelightthaninthedarkandisusedinphotocells;occursinsulfideores(aspyrite).ItsMolecularFormulaforozone,oxygenisth...
• 2017-08-1221058