知识贝壳
知识贝壳
所属栏目：英汉双解无机化学
A type of battery used invehicles. It has two sets of plates: spongylead plates connected in series to the negativeterminal,and lead(Ⅳ) oxide plates connect-ed to the positive terminal. The material ofthe electrodes is held in a hard lead-alloygrid. The p ......（本文共 1707 字 ） [阅读本文] >>