1) directional hydraulic fracturing
定向水力致裂
1.
Study on site test of directional hydraulic fracturing of hard roof
定向水力致裂坚硬顶板的现场试验研究
2) water fracturing
水力致裂
1.
According to the condition of Chengjiashan-coal mine s coal-bed and the technology of coal-mass s water fracturing, water injectionparameters are decided and program of water fracturing is designed on the basis of analyzing and researching the key question in water fractur-ing of hard coal-mass.
在分析和研究坚硬煤体水力致裂技术关键问题的基础上,本文根据陈家山矿煤层具体条件,依据煤体水力致裂技术原理,确定注水参数,选择煤层注水方案。
3) directional split blasting
定向致裂爆破
1.
In the present paper the method of directional split blasting is discussed.
通过对定向致裂爆破机理的分析和研究 ,推导出了切缝管装药的爆破参数。
4) soften with hydraulic fracturing
水力致裂软化
1.
According to the complex geological conditions at 21112 face,such as large coal hardness,the local fine-grained sandstone roof,fully mechanized mining with caving of roof coal in the second hierarchical seam,pre-splitting with loose blasting,soften with hydraulic fracturing and fit coal caving technology are pointed out by theory analysis and the scene measuring.
根据某矿21112工作面煤层硬度大,局部为细砂岩顶板,又是第二分层综放开采的复杂采矿地质条件,采用理论分析和现场实测的方法,得出松动爆破预裂、水力致裂软化和适宜的放煤工艺。
5) stress oriented hydrogen induced cracking
应力导向型氢致开裂
1.
The chemical composition,mechanical properties,hardness and metallographic microstructure of the busted electric heater's shell have been analyzed,the result shows that bursting caused by stress oriented hydrogen induced cracking.
通过对加热器材料化学成分、力学性能、爆裂处的材料硬度及其金相组织和断口等分析,表明原料电加热器是由于材料氢损伤产生的应力导向型氢致开裂导致的破裂。
6) hydrogen cracking by stress
应力导向氢致开裂
补充资料：环境致裂
分子式：
CAS号：
性质：受应力的固体放在有腐蚀性的液体氛围中所产生的或加速的开裂现象。在这种情况下发生开裂或破坏所需的应力要比没有液体氛围时小得多。高聚物材料在受应力或加工成型过程中造成的残余应力较大的时候，当它暴露在某种环境或是接触某些化学药品时很容易发生开裂。非晶高聚物如聚甲基丙烯酸甲酯、聚苯乙烯和聚碳酸酯等暴露在某些溶剂中时发生开裂。聚乙烯、聚丙烯在某些洗涤剂或油的作用下也容易发生开裂。
CAS号：
性质：受应力的固体放在有腐蚀性的液体氛围中所产生的或加速的开裂现象。在这种情况下发生开裂或破坏所需的应力要比没有液体氛围时小得多。高聚物材料在受应力或加工成型过程中造成的残余应力较大的时候，当它暴露在某种环境或是接触某些化学药品时很容易发生开裂。非晶高聚物如聚甲基丙烯酸甲酯、聚苯乙烯和聚碳酸酯等暴露在某些溶剂中时发生开裂。聚乙烯、聚丙烯在某些洗涤剂或油的作用下也容易发生开裂。
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