1) coal dust distribution
煤尘分布
1.
On coal dust distribution and control in lightly equipped top coal caving longwall faces
浅谈轻放工作面煤尘分布及控制
2) dust distribution
粉尘分布
1.
Thinking of the character of air current field in the heading face with forced ventilation, during the processes of study, the dust distribution in the face is divided into three regions, it is jet flow region, returning region and whirlpool region.
针对压入式通风掘进工作面风流流场结构特点 ,把工作面粉尘分布划分为 3个区 :射流区、回流区及涡流区来进行研究 ,建立了 3区粉尘浓度计算模型 ,得出了压入式通风掘进工作面3区粉尘分布不均匀的规律 :即回流区、涡流区粉尘浓度较高 ,分布较均匀 ;射流区粉尘浓度相对较低 ,且粉尘浓度沿射程不断变化 ,离风筒出风口越远 ,射流断面粉尘平均浓度越高 ;射流卷吸比对掘进工作面粉尘分布不均匀性影响较大 ,射流卷吸比越大 ,整个工作面粉尘分布越均匀 。
3) Distribution of floating dusts
浮尘分布
4) distribution of coal sorts
煤种分布
1.
The distribution of coal sorts and analysis of its geologic background in Shaanxi province;
陕西省煤种分布及其地质背景分析
5) place coal in layer
分层布煤
6) seam distribution
煤层分布
1.
This paper discusses the deposition factors that affect the seam distribution,seam thickness,and coal quality from the perspectives of the water level and water depth change of the reservoir basin,the topography of the coal lot,differential compaction effects,overflow deposition,water diversion,and marine roof.
从蓄水盆地的水位和水深变化、聚煤地段的地形起伏、差异压实效应、溢岸沉积作用、水系改道、海相顶板等几个方面阐述了影响煤层分布、煤层厚度及煤质的沉积因素。
补充资料：爆炸性粉尘
爆炸性粉尘
explosive dust
baozhaxlng fenehen爆炸性粉尘(explosive dust)见粉尘爆炸事故。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条