采用药柱密度测量技术和密闭爆发器试验，分析了试样的损伤程度，并对损伤装药的燃烧性能进行了研究。
The effects of physical dimension(inner diameter and length-to-diameter ratio) on the combustion performance of a tubular variable-burning-rate gun propellant were investigated by closed bomb test.
利用气体型流体进行欠平衡钻井，或钻易漏地层时，流体密度及井下液柱压力的确定十分重要。
When underbalanced drilling or drilling easy leaky zone by using aeration fluid, the determination of fluid density and downhole fluid column pressure is very important.
结果表明，施加水再压缩对提高等离子弧柱的能量密度和稳定性、进而提高陶瓷件切割质量非常有效。
It is shown that the water constriction is effective on improving the energy density and stability of the arc, so the cutting quality can be improved also.
为进一步提高等离子体弧柔性成形的表面质量，利用磁场控制弧柱的摆动状态进而控制单位面积上等离子体弧的热流密度，使之达到预期目的。
To improve the surface quality of flexible formation using plasma arc, its heat-flow density on unit area is controlled by controlling the swinging of the plasma arc with the alternate magnetic field.
举例分析在环空和钻柱内的稳定流动过程中，随井深增加，压力、含气率、多相流体密度等的变化规律；
The steady-state flows in drill pipe and in annulus are analyzed and the variations of pressure, gas void fraction, and multiphase-flow density along the well depth are simulated.
当表面复合速率和体缺陷密度较大时，纳米柱的长度不宜过大。
When the surface hole recombination velocity and defect density is bigger, the length of nanowire should not be too long.
最后到达的区域是正柱区，这里，电子和离子具有相等的密度。
Finally the positive column is reached where electrons and ions have equal densities.
结果表明，施加水再压缩对提高等离子弧柱的能量密度和稳定性、进而提高陶瓷件切割质量非常有效。
It is shown that the water constriction is effective on improving the energy density and stability of the arc, so the cutting quality can be improve...
实验上采取密度梯度的方法制造药柱，用大容量密闭爆发器测定了密度梯度药柱的燃速，得到了几乎平台型的燃速压力曲线。
A large volume closed bomb was used to measure the burning rates of the UHBRP samples. The up curves of UHBRP of density gradient show the plateau combustion characteristics.
本文讨论了高密度电法探测煤田陷落柱的若干问题。
The present paper deals with some problems concerning the detection of coalfield depressed pillars with the high-density electrical method.
以硅酸钾为硅源，甲酰胺为催化剂在毛细管内原位聚合形成干凝胶柱，制备了一系列致密度不同的整体柱。
Using potassium silicate as silicon source, formamide as catalyst, a series of silica xerogel monolithic columns with different consistencies were prepared.
本文讨论了高密度电法探测煤田陷落柱的若干问题。
This text aiming at the difficulty of subsided column currently in coal mine, launches the discussion.
并据此利用渐近分析方法分析了真空电弧中弧柱的磁收缩物理过程和电流密度分布，最后分析了电极参数对电弧收缩的影响。
Then the physical process of current constriction and the influence of electrode dimensions on it are analysed. This analysis can be used to explain the effect of axial magnetic fields t…
并据此利用渐近分析方法分析了真空电弧中弧柱的磁收缩物理过程和电流密度分布，最后分析了电极参数对电弧收缩的影响。
Then the physical process of current constriction and the influence of electrode dimensions on it are analysed. This analysis can be used to explain the effect of axial magnetic fields t…
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