[名词解释] 统破籽率

可燃性物质发生着火的（）称为着火点或燃点。 ["A、正常温度","B、最低温度","C、空气中湿度"] 新蒸汽温度突降有何危害？ 矿浆电解不能用于处理哪种矿物？（） ["黄铜矿","黄铁矿","赤铁矿","软锰矿"] 棉气比 融盐电解主要用于下述哪些金属的生产？（） ["Na","Mg","Al","Pb","Bi"] 统破籽率