Introduces the composition and the operational principles behind the blast velocity control system of the motorcycle chassis dynamometer.
简述了一个摩托车底盘电力测功机风速控制系统的组成及工作原理。
In this engine, air is converted, by burning fuel, into a blast of hot gas moving at high velocity.
在这种发动机中，空气通过燃烧燃料转换成高速运动的一阵热的气体。
The results indicate that the variation of ultrasonic velocity can reflect the damage degree of rock well, and the damage properties of rock can provide basis for the design of rock blast.
结果表明，岩石超声波速的变化可以很好地反映岩石的损伤程度，得出的岩石的损伤特性可以为岩石的爆破设计提供依据。
Blast vibration velocity has magnify effect in the vertical direction, the vibration value of vertical direction is bigger than horizontal direction at the same distance to blast place.
爆破振动速度在竖直向有放大效应，对于距爆源等距离的竖直向的爆破振速大于水平向。
Basen on the criteria of the peak particle velocity(PPV) for blast-induced damage, the design approach for excavation blasting near contour of rock slope is discussed.
基于岩石爆破损伤影响范围控制的质点峰值振动速度判据，就临近岩石边坡开挖轮廓面的爆破开挖设计方法进行了探讨。
Those researches centered on the explosion seismic effect caused by the excavating blast and the criterions of safety vibration velocity for different concrete structures.
以往的研究主要集中在爆破施工产生的地震效应方面，并制定了各种情况下混凝土结构的安全振动速度。
The single-hole casting blast experiment was conducted in lab. The formation process of blasting crater was observed and the casting velocity and its distribution rule was analyzed.
在实验室进行了单孔抛掷爆破试验，观测了台阶爆破漏斗形成过程，分析了抛掷速度及分布规律。
Finally, at long ranges, the blast wave becomes essentially a sound wave and its velocity approaches ambient sound velocity.
最后，在很远的距离处，爆震波基本上就变成一种声波，其速度已接近周围的声速。
This method is effective for studying the mechanism of blast vibration damage and blast seismic effect in its entirety, specially, for constituting velocity-frequency criteria.
该方法对综合研究爆破振动危害机理和爆破地震效应，特别是为构建爆破振动速度频率相关安全准则提供了一种有效的分析技术。
The velocity field, temperature field and skull figure in a blast furnace hearth were computed and analyzed.
结合实际高炉炉缸对其流场、温度场和渣皮形貌进行了数值计算和分析。
Objective To explore the effects of high velocity fragment on the severity of blast injuries.
目的探讨犬高速破片伤对冲击伤伤情的影响。
The relationship between blast wave pressure and blast wave velocity is deduced, which can calculate the blast wave pressure indirectly.
推导了激波压力与波速的关系，实现了激波压力的间接测量。
The initial position and velocity of pulverized coal at oxygen-coal lance outlet has been proposed, thus injection of pulverized coal in the blast furnace can be simulated.
给出了氧煤枪出口处煤粉颗粒初始位置和初始速度的分布，从而为高炉煤粉喷吹的数值模拟打下了基础。
The initial position and velocity of pulverized coal at oxygen-coal lance outlet has been proposed, thus injection of pulverized coal in the blast furnace can be simulated.
给出了氧煤枪出口处煤粉颗粒初始位置和初始速度的分布，从而为高炉煤粉喷吹的数值模拟打下了基础。
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