查询词典 coal

The process that gas desorbs from coal containing gas is a process of decalescence during which the coal temperature comes down gradually.

含瓦斯煤体在破裂过程中产生热效应，而且随着裂纹的扩展在裂尖区会产生附加温度场。

The developing process, structure and function of Decision Support System for the non-coal industrial evaluation in coal mine are introduced.

介绍了煤矿非煤产业项目评价决策支持系统开发的过程，以及系统的结构和功能，给出了各种评价指标的具体计算方法和原则。

The paper systematically summarized and reviewed plenty of achievements of rock strata movement and structure evolution, the migration laws of coal-bed methane and degasification methods, it can get that the mining overburden rock fissure patterns and distribution of methane migration law are the theoretical foundation of safety and simultaneous extracting of coal and gas, which are one of the study key points for the future.

论文系统评述了采动覆岩移动与结构演化、煤层瓦斯运移及瓦斯抽采方法的诸多成果，认为覆岩裂隙分布形态及其中瓦斯运移规律是实现煤与瓦斯安全共采的理论基础，也是今后研究重点之一。

Friend:Under the equipment which introducted to you mainly uses in:Coal coal egg production;Each kind smelts the diamond dust material cool suppression ball group production.

干粉压球机，压球机，压球蛋机详细介绍：朋友：下边给您介绍的设备主要用于：型煤炭蛋生产；各种冶金粉料冷压球团的生产。

Li Yangjian studied on the diastrophism which produced by the hard and soft rocks structure caused by the thick and hard limestone stratum at the bed top of the mining area and the weak intercalations coal measures strata durning he was working in coal measures pyrite mine at Fengli, where he found the new structure phenomena and get some basic point on continental layer controlled theory.

李扬鉴在枫林煤系硫铁矿工作期间，对矿区顶板厚层石灰岩刚硬层与下伏煤系软弱层之间软硬相间结构产生的构造变动，进行了长期地深入地研究，发现了许多前人没有发现过的构造现象，萌生了大陆层控构造学说若干基本观点的雏形。

Coal mining exists badly negative exteriority,it has restricted seriously the sustainable development of coal and diggings.

矿产资源开采存在着严重的负外部性，很大程度地影响到矿产资源及矿区的可持续利用和发展。

I'm in charge of discharging a large amount of charcoal and coal at the coal

我负责在煤矿卸一大堆木炭和煤。

I'm in charge of discharging a huge amount of charcoal and coal at the coal mine.

我负责在煤矿卸一大堆木炭和煤。

I'm in charge of discharging a huge number of charcoal or coal at the coal mine.

我负责在煤矿卸一大堆木炭和煤。

I' in charge of discharging a large amount of charcoal and m coal at the coal mine.

我负责在煤矿卸一大堆木炭和煤。

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％。