查询词典 coal

The forms and the identification methods of alkali metal in coal and their occurrence and migration mechanism during coal-fired process were summarized.

综述了煤中碱金属的存在形态、确定方法以及燃煤过程中的赋存迁移规律。

But the air flow that coal mine need and characteristic curve of resistance of coal mine is alterable.

轴流式风机的实际工况，取决于风机的特性曲线和矿井的阻力特性曲线。

Many phenomenon due to deep dip angle coal seam mining are still explained very well. There are a lot of deep dip angle coal seam mining district in China, the problem of miming subsidence is very general, so the research is of theory mining and practical value.

实践中，我国很多矿区有大量的倾斜煤层存在，倾斜煤层开采沉陷与变形预计问题普遍存在，需要我们对这类矿山的地表移动规律问题进行全面研究，因而该项研究具有重要的理论意义和生产实用价值。

Anglo Coal is one of the world's largest private sector coal producers and exporters.

英美煤炭公司是世界最大的私营煤炭生产商和出口商之一。

The major products is anthracite coal and bituminous coal, and so there.

煤炭产品主要是无烟煤与有烟煤等。

Western Canada Coal Company noted that its contract for the supply of imports of anthracite coal in this financial year average price of 100 U.S. dollars per ton.

加拿大西部煤炭公司指出，其对进口的无烟煤供应合同在本财政年度美国的每吨100美元的平均价格。

Compared with bituminous coal, anthracite coal is much more difficult to take fire and combust completely.

与烟煤相比，无烟煤具有着火难、难燃烬的特点。

Fat coal is anthracite, bituminous coal, or do there?

发电煤就是无烟煤，或者有烟煤吗？

The combustion characteristics of stone coal are similar to anthracite coal and worse than anthracite.

石煤的燃烧特性与无烟煤相近，但比无烟煤差。

Those mountains, and the coal that lies beneath them, dominate West Virginia; it is the only state that lies entirely within the Appalachians, and it produces 15% of America's coal.

那些山脉以及蕴藏在地底的煤矿影响着西弗吉尼亚；它也是唯一一个完全依赖于阿巴拉契亚山脉的州，同时它生产的煤矿量占到美国总数的15%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。