英:[braun kəul]
美:[braʊn kol]
英:[braun kəul]
美:[braʊn kol]
The first known use of brown coal was in 1805
brown recluse spidernoun
a poisonous spider especially of the southern and central U.S. that has a dark violin-shaped mark on the front half of its back
Brownian motionnoun
a random movement of microscopic particles in liquids or gases that results from collisions with molecules of the fluid surrounding the particles called alsoBrownian movement
brown coalnoun
lignite
1 The five chunks of brown coal, each no bigger than a matchbox, add further evidence of the port’s antiquity.
2 The regional power supplier, RWE, had already bought the land from farmers to expand its mining for brown coal, which the protesters pointed out is an especially polluting fuel.
3 For its part, the German power provider has defended the eviction of the protesters and the mining of the brown coal.
4 Friis initially specialized in lignite, or brown coal, a precursor of black coal that forms from decaying vegetation.
5 The European Union generated 22% of its power with coal and its sister fuel lignite, also known as brown coal, in the first two weeks of December, said Mr. Czyżak.
6 The cheapest form – brown coal – was most in demand.
7 The cheapest form — brown coal — was most in demand.
8 Demand for brown coal – the cheapest and most energy inefficient form – used by Czech households jumped by almost 35% in the first nine months of 2022 over a year earlier.
9 Preparation of carbon molecular sieves ( CMS ) brown coal by two - step carbonization method ( TSC ) has been investigated in this work.
本文针对高挥发分的褐煤原料,提出两步 炭化 法制炭分子筛概念,并考察了工艺条件和产品空分性能.
10 How to use good brown coal, to the economy of these areas development has main effect.
如何用好褐煤, 对这些地区的经济发展有重要作用.
11 The result show that the organic affinity of trace elements in brown coal is higher.
结果表明,有机态结合的微量元素在褐煤中含量比较高.
12 This method and systems are also used for other volatile - rich fuels as brown coal and coal.
此实验方法和装置,同样适用于研究褐煤、烟煤等高挥发分燃料的输送特性.
13 The methods of making solid coal sorbent and liquid gelsorbent from lignite are also discussed in this paper.
列举了由褐煤制取固体煤质吸附剂和液体凝胶吸附剂的方法。
14 TheASTM rankings for bituminous coal, sub-bituminous coal, or lignite fit the spreader combustion process well.
美中试验材料协会根据煤在燃烧时的性能把煤分为烟煤,次烟煤,褐煤几个等级。