In making steel there's essentially no difference between the polyethylene plastic in shopping bags... and a natural resource like coal.
在生产钢铁中所使用的碳几乎和那些购物袋里的聚乙烯塑料没有差别…和煤一样是一种自然资源。
Through the comparison of seismic wave attenuation and plastic strain, except for geometrical attenuation, the plastic deformation of coal and rocks is also contributing to energy consumption.
通过地震波的衰减规律与塑性应变变化的比较可见，能量的消耗除了几何扩展衰减外，煤岩体的塑性变形方面也起了一定的作用。
The diameter of sand, content of plastic clastic and development of coal measures play a role in decreasing pore and development of protogenic pore between grains during diagenetic compaction.
砂岩粒径、塑性岩屑含量和煤系发育程度影响成岩压实减孔量，从而影响剩余原生粒间孔隙发育程度。
Theoretical analysis shows that coal pillars plastic zone width not only with mining depth, mining height, but with the recovery rate.
理论分析表明，煤柱塑性区宽度不仅与采深、采厚有关，而且也同采出率有关。
When nanometer additive agent is added into plastic and the plastic is mixed and improved, the technical performance of the plastic pipes can reach the use standard in coal mines.
通过在塑料中加入纳米添加剂，进行混合改性处理，使塑料管材的技术性能达到煤矿井下的使用标准。
In the plastic limit analysis, the wrinkler's plate is smartly analyzed in yield-line theory to get the critical compression strength of the coal pillar.
在分析过程中，利用机动法对温克尔地基板（弹簧支撑板）进行了塑性极限分析，得出了煤柱抗压强度的临界值。
While the coal seam hardness is definite, the increasing velocity of the width of the plastic zone of pillar decrease with the increase of interfacial bond property between coal seam and roof.
当煤层硬度一定时，随着煤层与顶底板界面粘结性能的提高，煤柱塑性区宽度增长的速度递减；
A formula of the stress and the width of plastic zone in strip coal pillars is derived by strictly mathematical calculation.
通过数学运算推导出条带煤柱塑性区应力及宽度的表达式。
In the end, we made a fuzzy comprehensive risk assessment for chemical enterprises (plastic plants and coal gas plants).
并对某化工企业(塑料厂和煤制气厂)进行模糊综合风险评估。
The utility model belongs to the technical field of the coal mine tunnel safety support. Concretely speaking the utility model relates to a plastic anchoring sleeve.
本实用新型属于煤矿巷道安全支护技术领域，具体的讲涉及一种塑料锚固套筒。
While the interfacial bond property is unchanged, the width of plastic zone of pillar increases with the increase of buried depth of coal seam.
当煤层顶底板粘结性能一定时，随煤层埋深的增加，煤柱塑性区宽度增加。
Based on the material of iron in some iron and steel companies, the low temperature reduction degradation of iron ore in the condition of injecting blends of coal and waste plastic in BF is studied.
以国内某钢铁公司的炼铁原料为基础，进行了高炉喷吹煤与废塑料条件下的矿石低温还原粉化性能研究。
The utility model belongs to the technical field of the coal mine tunnel safety support. Concretely speaking, the utility model relates to an adhesive type recoverable plastic anchor stock.
本实用新型属于煤矿巷道安全支护技术领域，具体的讲涉及一种粘结式可回收塑料锚杆。
The Company subordinate: Lunan Institute of Mining washing machine, coal washing machine factory, 200,000 tons coal washery two, plastic drainage pipe to the plant, oily water-based paint factory.
本公司下属：鲁南矿山洗选机械研究所、洗煤机械厂、20万吨洗煤厂两座、塑料给排水管材厂、油性水性涂料厂。
The Company subordinate: Lunan Institute of Mining washing machine, coal washing machine factory, 200,000 tons coal washery two, plastic drainage pipe to the plant, oily water-based paint factory.
本公司下属：鲁南矿山洗选机械研究所、洗煤机械厂、20万吨洗煤厂两座、塑料给排水管材厂、油性水性涂料厂。
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