久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

Antimonial lead is preferable to chemical lead because of its greater corrosion resistance and strength.含銻的鉛較化工鉛好些,由于它有更好的抗蝕性及強度....

antimonial的音標：antimonial的英式發(fā)音音標為：[?nt?'m??nj?l]antimonial的美式發(fā)音音標為：[?nt?'mo?nj?l]...

adj.銻的，含銻的...