soft coal
质地较软
常用释义
英式发音
美式发音
基本释义
- 烟煤：指一种黑色或棕色的煤，质地较软，燃烧时产生大量烟雾和火花。
例句
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1·The combustion characters of petroleum coke were between those of soft coal and anthracite .石油焦的燃烧特性处于烟煤和无烟煤之间。
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2·There are many kinds of forms of gas discharge, but the main form is soft coal seam gas discharge.瓦斯抽放形式有多种，本煤层抽放是其主要形式。
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3·However, with the extension of mining depth, the distribution of soft coal seam has been expanding.然而，随着矿井开采范围的延深，松软煤层的分布范围呈不断扩展趋势。
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4·It has good coal adaptability and is especially suitable for soft coal that has high tar content and big gas output.煤种适应性强，尤其适用于焦油含量高，产气量大的烟煤。
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5·The II3123 face is a light type caving face of three-soft coal seam. the roof is cracked, sloughing and roof fall often occur.前言： 石台煤矿II3123工作面为“三软”煤层轻放工作面，顶板破碎易掉，片帮、冒顶时常发生。
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6·As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.由于松软煤层的瓦斯含气量高而透气性又极差，一直是本煤层瓦斯抽采的难点和重点。
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7·There are three coal mines in Xin'an Coalfield. The Shanxi group irregular(2-1) coal seam has soft roof, soft coal and soft floor.在新安煤田新建的三对矿井，主采煤层均为山西组2-1三软不稳定煤层。
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8·After More burial and chemical transformation of the aging organic material, the peat becomes lignite, a very soft coal-like material.当这些古老的有机物质经过进一步的埋藏和化学变化，泥炭就变成一种非常软的，像煤物质那样的褐煤。
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9·The project takes pyrogenic dry distillation gas of soft coal in continuous retort as the fuel gas and produces ferroalloy coke and crude tar oil.本项目是以烟煤在连续炭化炉中热解的干馏煤气作为城市燃气，同时付产铁合金焦和粗焦油。
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10·This paper puts forward support plan through analyzing strata behavior regularity of coal roadway in seam with soft roof, soft coal and soft floor.文章通过对永华煤矿“三软煤层”煤巷矿压规律进行分析，提出了支护方案。