It is important for fracturing design and operation to determine hydraulic fracturing initiation pressure and mode.
确定水力裂缝在井壁处起裂的压力和方式，对水力压裂设计和施工有重要的作用。
The best second initiation time for gun-launched FAE was determined through the static explosive experiment and the change of pressure in exploding field.
通过设计战斗部静爆实验，依据爆炸场的压力变化确定了某型炮射云爆弹最佳二次起爆时间。
The article focused on analyzing the explosion pressure at the different position of initiation point when the charge blasted on the exterior of target under contact demolition.
文章着重分析装药在目标外部接触爆破时，不同的起爆点位置产生的爆炸压力情况。
Since the pressure gradient affects stress strength of crack top, it is unsuitable to judge crack initiation by the traditional breakdown pressure.
气体压力分布影响裂缝尖端应力强度，因而不能用传统的破裂压力来判断裂缝起裂扩展。
People need to be simple and pure way of life to alleviate the psychological pressure in the increasingly busy city life, then get rid of cumbersome initiation of the pursuit of simple psychological.
日趋繁忙的城市生活，人们需要以简洁纯净的生活方式来缓解精神上的巨大压力，继而萌生了摆脱繁琐、追求简单的心理。
While the confining pressure will inhibit the initiation and propagation of cracks, consolidate the carrying capacity of microelement and enhance the secant modulus of rock.
围压则可以抑制裂纹的萌生和扩展，强化了微元体的承载能力，使得割线模量会增加。
Epidemiologic studies have shown that intra-ocular pressure alone is generally in - sufficient basis for the diagnosis and initiation of therapy for glaucoma.
流行病学的研究已经表明仅凭单一的眼压诊断青光眼和着手进行青光眼治疗通常是根据不足的。
For researching crack initiation condition and water injection pressure needed, this paper built up a mechanics model of crack tip based on crisp fracture theory of compound crack.
为研究初始裂缝尖端起裂的条件和所需注水压力，依据断裂力学的复合型裂纹的脆性断裂理论，建立了裂缝尖端力学模型，给出了计算方法。
It is found that both the initiation hydraulic gradient and the failure hydraulic gradient increase with confining pressure. This is mainly due to the increase of friction between particles.
试验结果表明，起动水力梯度和破坏水力梯度都随着围压的增大而增大，是由于增大围压使得颗粒间的摩擦力增大的结果。
The result indicates that the initiation fracture pressure can be obviously reduced by raising the perforation diameter and depth;
计算结果发现，增加射孔直径、深度可以显著降低起裂压力；
The result indicates that the initiation fracture pressure can be obviously reduced by raising the perforation diameter and depth;
计算结果发现，增加射孔直径、深度可以显著降低起裂压力；
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