1. a hard wax obtained from lignite. 
   取自褐煤的一种硬蜡。
2. a hard black form of lignite that takes a brilliant polish and is used in jewellery or ornamentation. 
   一种黑色硬质的褐煤，表面亮滑，用于珠宝和装饰。
3. A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal. 
   褐煤一种褐色软质煤，植物性物质的变化程度比泥煤重但比烟煤轻

查看更多例句 相关情景会话

• 1. lignite
  lignin 木质...lignite 褐煤...lime 石灰
  www.b2china.globalsino.com - 相关搜索
• 2. brown coal
  線號規brown coal...褐煤brownies...棕斑brownmillerite
  eapesp.dee.nuu.edu.tw - 相关搜索
• 3. lignitic coal
  lignite褐煤...lignitic coal褐煤...lignitic material褐煤
  www.oilsoft.cn - 相关搜索
• 4. lignitous coal
  lignitic coal 褐煤...lignitous coal 褐煤...lime 石灰
  www.029edu.com - 相关搜索