leonardite

leonardite

 英

  • n.风化褐煤

英汉解释

n.
1.
风化褐煤

例句

One of these natural materials originates from organic humates in the leonardite (soft coal)stage from ancient humus beds.

这些自然原料之一来源于风化褐煤一种蕴藏古代有机腐殖质

Low-rank coals include turf, lignite and leonardite. China has an abundant resource.

低级包括泥炭褐煤风化我国贮藏丰富开发利用这种资源具有重要意义