Coal dust

Influence factors and mathematical model of coal dust particles threshold velocity

煤炭粉尘颗粒起动风速影响因素及数学模型

His face and hands were covered with grim of coal dust.

他的脸和双手都沾满了煤炭的污垢.

Measurement and control system of shock tube of coal dust pyrolysis

煤粉热解的激波管测试法及其控制系统

The advantages and disadvantages of coal dust preventing techniques at domestic and abroad were analyzed.

分析研究了当前国内外粉尘防治技术的利弊.

Research on the Law of Coal Dust Settling at Transfer Point and Simulation Analysis

煤炭运输转载点粉尘沉降规律的研究

Lustrous carbon is deemed as technical data for evaluation of coal-dust.

煤粉光亮碳可作为煤粉的技术性能指标.

Study on Preparation and Properties of Complex Coal Dust Inhibitor

复合型煤尘抑制剂的制备及性能研究

Enclosed case decreases pollution by coal dust.

采用密闭壳体,粉尘污染小.

He became ill after breathing coal dust for many years.

他因多年吸入煤灰而生病了.

The air is so black with diesel fumes and coal dust, I can barely see.

空气中充斥着柴油烟雾和煤尘粉末，黑乎乎的，我几乎什么都看不见。

His face and hands were covered with~ from the coal dust.

他的脸和双手都沾满了煤灰的污垢。

Many ventilation methods have adopted, but no one could bring gas coal dust under control entirely.

虽然采取了许多通风方法, 但是都不能彻底治理综掘工作面的瓦斯、煤尘.

Discussion on The Characteristics and Control of Coal Dust Explosion

煤尘爆炸的特征及控制初探

Study of harmful effects of coal dust on respiratory system

煤尘对呼吸系统危害的研究

Analysis on mine coal dust explosion danger degree base on normal fuzzy function

基于正态模糊数的矿井煤尘爆炸危险度分析

Study of high adding powder coal dust use to preparation refractory

粉煤灰高掺量制备耐火材料的研究

Wind velocity on-Line Monitoring System Used in Coal Dust Boiler

风速在线监测系统在煤粉锅炉上的应用

He moved the coal cakes away and there was only coal dust left on the floor.

他把煤饼搬走了,地下只剩下一层煤末.

Research Progress in Explosion Characteristics and Spread Law of Gas and Coal Dust

瓦斯煤尘爆炸特性及传播规律研究进展

The relation between airborne dust and coal dust at the coal terminal is discussed.

论述了煤炭港口大气降尘与煤尘污染的关系.

Study of Relations between Coal Dust Size and Minimum Ignition Temperature

煤尘粒径与最低着火温度的关系研究

Application of Environment Monitoring in Management of Coal Dust Controlling

环境监测在煤尘控制管理中的应用

Matthew scrubbed the coal dust from his face.

马修擦掉了脸上的煤灰。

The harmful coal dust was produced during coal transportation by using belt conveyor coal preparation plant.

煤炭在洗煤厂的运输机上运送过程中产生浓烈的煤尘.

Optimum Analysis on Coal Dust Suppression by On-line Water Spraying System

在线喷水控制煤矿随机性粉尘产生的最优化分析

His face and hands were covered with grime from the coal dust.

他的脸和双手沾满了一层煤灰.

His face and hands were coverd with grime from the coal dust.

他的脸和双手都沾满了煤灰和污垢.

Coal worker's pneumoconiosis results from inhalation of coal dust.

煤尘肺是由吸入煤矿粉尘引起.

FS powder can be used as a substitute for coal dust to prevent metal penetration.

FS粉 可以取代煤粉作抗粘砂材料,其加入量比煤粉少,可以显著降低型砂的灰分、水分和发气量,提高透气性.

Experimental Study and Analysis on Explosive Characteristics of Ultra-fine Coal Dust

超细煤粉爆炸特性的实验研究与分析