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1)  multi well fracture
群井致裂
2)  fracturing [英]['fræktʃə]  [美]['fræktʃɚ]
致裂
1.
Compound technique of perforating can effectively control the perforating direction and the fracturing expansion.
借鉴石油工业中的复合射孔技术,对其应用于煤层致裂进行了初步的实验研究。
2.
This paper sets forth the essence of testing rock stress by fracturing controlit also introduces the basic theory of fracturing control,the virgin rock stress caculationwhich is used to control fracturing according to wall rock.
阐明了用控制致裂测试岩体应力的实质。
3)  well group
井群
1.
Excel software for optimal design of well group in foundation pit;
Excel软件优化基坑降水的井群设计
4)  multi-borehole
群井
1.
Based on the computational simulation, the impact of operating strategy with a working interval (intermittent control) on heat transfer in a multi-borehole field of ground source, the characteristics of temperature change of the field, total running time, capacity of heat transfer and the interaction of heat transfer among boreholes was studied using this calculation results.
利用传热模拟分析,研究了地源热泵(GSHP)地能利用中地下群井多源换热及其运行模式影响规律。
5)  tight gas wells
致密气井
1.
Water locking effect may damage greatly the tight gas wells and prevent them from high productivity.
致密气井普遍具有低孔、低渗、高含水饱和度的特点。
6)  hydrogen-induced cracking
氢致开裂
1.
The threshold stress intensity of hydrogen-induced cracking during dynamical charging for 40CrMo steel decreased linearly with the logarithm of the concentration of diffusible hydrogen, C0, i.
动态充氢时氢致开裂(HIC)门槛应力强度因子KIH随试样中可扩散氢浓度C0(10-6)的对数而线性下降,即KIH=31。
2.
Various mechanisms of hydrogen-induced cracking and stress corrosion cracking have been reviewed.
本文对各种氢致开裂和应力腐蚀机理进行了评述。
3.
The KIH and da/dt of hydrogen-induced cracking in hydrogen gas at 400℃, however, could be measured.
对了Ti_3Al+Nb金属间化合物,用预裂纹试样研究原子氢引起的氢致开裂。
补充资料:环境致裂
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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。

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