查询词典 coal-hole

The theories on pyrolysis and coking and hydrogenation of heavy oil are used to know the liquefaction and gasify and coking of coal. 3. The results of particle feeding in the hot plasma jet (1) By using the cold state of spraying the diesel oil mist transversely in the air flow at the subsonic and ultrasonic speed to imitate the stress condition and motion trace of coal powder in the plasma jet, it shows that with the speed of air flow changed from subsonic speed to ultrasonic speed, the uniformity of mixture between the coal powder with certain speed and air flow becomes worse, mixture length becomes shorter, which agrees with the law of momentum transfer.

三、热等离子体射流中颗粒注入研究的结果(1)利用柴油油雾在亚、超音速气流中横向喷射冷态模拟煤粉在等离子体射流中的受力和运动轨迹，结果表明随着气流速度由亚音速向超音速增加，一定速度的煤粉与气流混合均匀度变差，混和长度增加，符合动量传递规律。

"After destructive distillation, coal leaves a solid residue, coke, while, coal-tar and pitch are collected as a distillate, and coal-gas is collected in gasometer"

煤干馏后剩下的固体残渣焦炭，而煤焦油和沥青则作为馏出物收集起来，煤气则收集于储气器中

By analyzing the geological characteristics,function of coal gathering,coal measures strata and burial conditions of Jiyuan area,it is pointed out the prospecting direction for coal field.

通过对济源西部地质特征、煤田聚煤作用、煤系地层及埋藏条件的分析，提出了在该区的找煤方向。

Sedimentary control of coalbed methane in this region were expounded according to the control and influence of sedimentation on coal gathering action (thickness of coal reservoirs, distributing and coal-bearing characteristics), on forming and distributing, maceral, organic facies and coalfacies, cap formation types and their sealing capability of adjoining rock.

根据沉积作用对聚煤作用（煤储层的厚度、分布及含煤性特征），对煤储层的形成与展布、煤岩组成、有机相和煤相、顶底板盖层类型与封盖性能的控制和影响，讨论了沉积作用的控气特征。

It is a new topic that rule of ground movement in deep dip angle coal seam mining, the coal seam angle is one of important factor of deciding the rule of ground movement , the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation.

倾斜煤层是指煤层倾角在15°—55°之间的煤层，倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个重要组成部分，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

ZM Series exploding isolation protable cola eletrical drill used for mining is applicable to coal mine where has explosive gas and coal dust,used to drill holes in half-hard and hard coal bed when digging .

ZM系列矿用隔爆领手持式煤电钻适用于具有镁尘爆炸性气体混合物的煤矿井下，在采掘工作面对中硬和硬煤层钻眼之用。

Base on the summarization of the 50 years safety and high efficient coal mining achievements with hydraulic powered shield supports in Huainan coal mines the paper analyzed the rational layout of the gateway,optimized geometric parameters of thecoal mining face,improvement in potential,reform and invonvation,production process control,mien water and mine fire prevention and control,the siutbal conditions for the pseudo inclined coal mining with flexible shild support and other key technologies.

1概况1956年淮南煤矿先后试验了木结构的平板型、撬板形、"く"形、"人"形，钢结构的弧形、弓形、"く"形、"八"形等掩护支架，通过多次工业性试验并对所试验的掩护支架结构进行了一系列改革和完善，终于形成了目前所用的钢结构八字形掩护支架。以单腿支撑式掩护支架为例，八字形掩护支架是由钢梁、钢丝绳、垫板和绳卡、U形螺栓、扁铁、柱托、滑托板等组成。

Thoughting of to°from the carbon esmissions the coal mine, China of the coal store quantity 600,000,000,000 tons, world three, can China mineral difficult death toll world a, incompletely statistics, 2004 death 6027 people, 2005 death 5986 people, 2006 death 5770 people, 07 and 08 also have no to die down it power, abroad relevant the expert appeal:China taken blood the coal have to be stop immoderation of mine.

由碳排放量想到煤炭开采，中国的煤炭储藏量6000亿吨，具世界第三，可中国矿难死亡人数全球第一，具不完全统计，2004年死亡6027人，2005年死亡5986人，2006年死亡5770人，07、08也毫无减弱之势，国外有关专家呼吁：带血的中国煤炭必须停止无节制的开采了。

Though the contents of trace elements in coal are very low, environment pollution caused by trace elements has been an inarguable fact At present, more researches lay particular stress on the occurrence during coal combustion, and several about coal gasification. The researches about trace elements in fluidized bed gasification are much less, saying nothing of pressurized fluidized bed gasification.

目前国内外研究更多的偏重于燃煤过程，对煤气化过程中微量元素迁移规律的研究较少，关于流化床气化炉型的文献更少，涉及加压煤气化过程中微量元素迁移规律的研究几乎没有。

The strata are Triassic Xujiahe group sand-shale stratum which containing coal layer. It is nearly three-century history about the coal layer exploitation. In that time, because of the outdated technique and inorganization, the coal caves have the characteristic of randomicity, concealment, universality, no obviously regularity and the small scale for single cave.

坝区地层为三叠系须家河组砂页岩含煤地层，煤层的开采已近300年历史，由于当时开采技术落后、无组织性，导致煤洞具有随机性、隐蔽性、广泛性、单洞规模小、无明显规律等特点。

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％。