| 词汇 | soft coal |
| 类别 | 英汉双解翻译词典 |
| 释义 | soft coal 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 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。 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。 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。 同义词 [矿物]烟煤 bitumitebituminous coal |
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