natural coke

基本解釋

In China national standards of coal classification, there only no type division of natural coke so far.
目前中國煤炭分類國家標(biāo)準(zhǔn)中，唯獨(dú)對天然焦沒有明確的分類指標(biāo)。
Natural coke has good conditions of physical character, and contain abundant coalbed gas, is an ideal reservoir of gas.
天然焦具有良好的物性條件，含有大量的瓦斯氣體，是一個理想的儲氣層。
In view of the mine actual situation of coal resource approaching exhausted, natural coke excavation craft was studied.
針對礦井剩余煤炭儲量接近枯竭的實(shí)際情況，進(jìn)行了天然焦開采工藝研究。

In order to make low calorie drinks taste better, soft drink makers led by Coke, Pepsi and Dr. Pepper Snapple are experimenting with natural, low calorie sweeteners and flavor enhancers.
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