manganous carbonate

例句：

1. 1. This chemical is used as a catalyst in the production of steel.
   这种化学物质在钢铁生产中用作催化剂。
2. 2.The reaction between manganous carbonate and hydrogen peroxide produces a powerful oxidizing agent.
   锰碳酸盐与过氧化氢的反应产生一种强大的氧化剂。
3. 3.Manganous carbonate is a common mineral found in river sediments.
   锰碳酸盐是一种常见的矿物，存在于河流沉积物中。