fossil salt

英 美
  • 岩盐
    1. Quartztes and rock salt have the highest conductivities.
      石英岩和岩盐的热导率最高。
    2. It is said that some of the world's supply of salt is mined as rock salt.
      据说,世界上有些食盐的供应靠采掘岩盐。

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