manganese protoxide是什么意思 manganese protoxide怎么读
manganese protoxide的用法和样例
- A black mineral consists of basic manganese oxide.
一种黑色矿物，由基性氧化锰组成。 - A zinc and manganese dioxide-based cathode and anode are fabricated from proprietary inks coatings.
锌和二氧化锰分别做正负极并且涂有自主知识产权的墨水。
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