Fracture energy of concrete was measured for studying the fracture brittleness of the high performance concrete mixed ground granulated blastfurnace slag (GGBFS) and silica fume.
采用混凝土断裂能试验研究了使用磨细矿渣和硅灰配制的高强度高性能混凝土的断裂脆性。
The fracture strain energy density at the high strain rate is mainly determined by the initial elastic modulus and the unstable strain and affected by the temperature and the strain rate.
在高应变率下，断裂应变能密度主要由初始弹性模量和失稳应变共同决定，受温度效应和应变率效应的综合影响。
On the basis of a lot of field experiments, this paper proposes a synthetic and practical mathematical-physical model of High Energy Gas Fracture h.
本文在大量现场试验的基础上，提出了一个综合实用的高能气体压裂H。
Objective: the pelvic fracture is a high-energy injury; the incidence of pelvic fracture is lower in comparison with the fractures of extremities and spine.
目的：骨盆骨折一种高能量的损伤，发生率仅次于四肢和脊柱骨折。
The paper advances two mechanisms about effect of aggregate during fracture of high strength concrete and adopts the point of energy to analysis of the mechanisms.
提出集料在高强混凝土断裂过程的两种机理，并采用能量观点分析这两种机理；
It should be noticed whether wrist joint stability was complicated in distal radical fracture with severe dislocation or high energy injury.
对骨折移位严重或高能量损伤的桡骨远端骨折，要注意是否合并腕关节不稳定。
The research indicates that Neural Network has high accuracy because it is able to realize nonlinear relations and because more factors influencing fracture energy are taken into account.
研究表明，神经网络方法由于综合考虑了更多的混凝土断裂能影响因素，而且能够实现非线性关系，所以具有较高的预测精度。
Numerical Simulation of the multiple radial fracture propagation during the high energy gas fracturing is significant in the study of mechanism.
数值模拟是高能气体压裂径向多裂缝延伸机理研究的重要内容。
The paper proposed some measures to reservoir protection during the process of water infection, for instance, high energy gas fracture, washing with acid and so on.
进而，提出该区块保护储层的相应措施，比如高能气体压裂，小型酸化等措施。
This peper studies emphatically the variation laws of well temperature with the time in high energy gas fracture.
本文着重研究了高能气体压裂过程中，井温随时间的变化规律。
The theoretical research deficiency of the key elements to High Energy Gas Fracture (HEGF) system has greatly restricted its further popularity and application in oilfield.
高能气体压裂系统关键因素理论研究的欠缺，严重限制了该技术在油田的进一步推广。
The theoretical research deficiency of the key elements to High Energy Gas Fracture (HEGF) system has greatly restricted its further popularity and application in oilfield.
高能气体压裂系统关键因素理论研究的欠缺，严重限制了该技术在油田的进一步推广。
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