white charcoal

英 美
  • 白炭
  • charcoal n.木炭;炭笔
  • white adj.白色的;纯洁的;白种的;加牛奶的n.白色;白种人
    1. A new approach for production of inorganic fluoride compound and silica white is described.
      介绍一种无机氟化合物和白炭黑生产的新方法。
    2. Our county is in great need of high-grade white carbon black and nanometre silica products.At present, the products are imported.
      我国对高档白炭黑和纳米级二氧化硅产品需求量大,目前主要依靠进口此项目产品。