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Terms for subject Explosives and Explosive Ordnance Disposal containing 多量的 | all forms
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在有多重共线性的情况下、就会出现多余的自变量、这样会使自变量对应变量产生错误影响。多重共线性是否存在、可以通过对自变量的方差膨胀因子的计算来检验In the presence of multicollinearity,redundancy of the independent variables exists, which can lead to erroneous effects by the independent variables on the dependent variable. The existence of multicollinearity can be checked from a calculation of the variance inflation factor VIF of the independent variables
多重共线性指的是两个或两个以上自变量之间的高度线性相关性multicollinearity refers to a high degree of linear correlation between two or more independent variables
当炸药威力大、产生的震感强、噪声大、飞石多。如果炸药威力太小、由于抵抗线和围压增加、会导致爆破失败、而且对于每次延时所用的药量而言、所产生的振动会比预计的要大While a high powder factor may generate higher levels of vibration, noise and flyrock, a power factor that is too low may cause a blast to fail and may generate more vibration than expected for the charge per delay that was used, because of increased burden and confinement
很多专家以前的研究也表明、如果单位炸药消耗量小于临界值、飞石现象是可以避免的Previous studies by many experts also show that flyrock can be avoided if the powder factor is smaller than a critical value。
所计算的能量和膨胀功的最大误差源炸药无法达到理想爆轰、对于大多民用炸药来说、这个偏差很大The greatest source of error in the calculated energy and expansion work is the deviation from ideal detonation,which is large far most commercial explosives
最近几十年、由于二氧化碳及其他温室气体的大量排放、人们关切的全球变暖问题敦促诸多工业调研和实施减少气体排放的标准Global warming concerns due to large quantities of emissions of carbon dioxide and other greenhouse gases GHGs in recent decades are driving many industries to investigate and implement emissions reductions
然而、这样的测量需要涵盖多种条件和炸药、且可能因耗费大、耗时多而受限制It might be argued that measurements of gas concentrations arising from real field conditions could provide an improved approach,however such programs would need to cover a wide range of conditions and explosives and could be prohibitively expensive and time-consuming
爆破中所用的炮泥类型和分量以及对阶梯地形的处理、会大大地影响抛向空中的物质的多寡、因此也大大地影响一次爆破中可能喷出的飞尘比例The type and adequacy of the stemming material used and the management of progressive relief during detonation have a strong influence on the amount of material thrown into the air and hence the proportion of dust likely to be emit ted from a blast
经过多次实地测试、他们的结论是、如果药量的增加、破碎量和飞石的速度也随之剧增After repeated field experiments, they drew a conclusion that as the charge increases, the fragmentation and the velocity of the broken material increases as well
飞石产生的主要原因包括抵抗线不足、炮泥长度不够、钻孔不精确、单位炸药消耗量过多、地质条件不利露天节理、矿层不稳固和空穴、延时定时和序列不当、延时不精确、发生反向爆破、以及台阶上部岩石松散等The major causes of flyrock are inadequate burden, inadequate stemming length, drilling inaccuracy, excessive powder factor,unfavorable geological conditions open joints, weak seams and cavities, inappropriate delay timing and sequence, inaccuracy of delays, back break and loose rock on top of the bench