This paper analyses data type of Coal Spatial Information System, then defines a series of DTD.

本论文分析了煤矿空间信息系统的数据类型，定义了一套DTD文档。

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This paper introduces a new type of coal-dispensing and loading system based on the USS protocol.

本文介绍了一种基于U SS通信协议的配煤装车系统。

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The anthracite is the most valuable type of coal. It burns slowly, with little smoke and a very hot flame.

无烟煤是一种最有价值的煤，它燃烧慢，烟很少但火焰却很大。

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He anticipates that Consol will send about six million metric tons of this type of coal to China next year.

FORBES: Chinese Coke Craze Kicks Up Business For Consol

The market soon found another solution for glassmaking, a new type of coal furnace, patented in 1611 by Edward Zouch.

FORBES: Magazine Article

The final rule sets a variety of targets depending on the type of plant and the type of coal it burns.

NPR: E.P.A Proposes New Rules on Haze