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- The high frequency pulse 50-100/sec is known as dense wave, the low frequency pulse 2-5/sec termed as rarefaction wave. 频率快的叫密波(高频),一般在50-100次/秒,频率慢的叫疏波(低频),一般在2-5次/秒。
- It provides an alternation of rarefaction wave and dense wave, each wave lasting for one and a half second. 是疏波、密波自动交替出现的一种波形。
- Influences of plasma shielding and rarefaction wave on impulse coupling coefficient[J]. 引用该论文 章玉珠;王广安;沈中华;倪晓武;陆建.
- The rarefaction wave immediately behind shockwave decompressed the shattered rock and threw them along with jet current. 紧接着冲击波后面形成的稀疏波使压碎的岩石减压并随喷射流(气浪)抛出。
- The scheme deals effectively with both shock and rarefaction waves. 在计算接触间断方面比线性间断分解格式的结果要差些。
- The newly developed rarefaction wave gun(RAVEN) can achieve low recoil momentum without decreasing the muzzle velocity of the projectile by means of delayed venting the breech. 膨胀波枪炮利用延时打开膛尾的方法实现了在不降低弹丸初速的前提下大幅度减小枪炮后坐的目的。
- The traditional rarefaction wave diagnosis method is improved by means of dual-page memory data acquisition apparatus and by using GPS time-label pinpointing leak location. 它采用双扭环技术和GPS时钟同步技术实现对传统负压波诊断系统的改进,采用假设检验和模糊数学理论对小泄漏故障负压波进行诊断。
- By combining the transient change model method and rarefaction wave method, the multidimensional rules to detect the leakage and locate the leak point were set up. 并结合管道瞬变模型法与负压波法建立多维判别法则,解决输油管道泄漏检测及漏点定位的问题。
- In the light of the shortcomings of small leakage diagnosis of oil pipe line, a new leakage detection method based on modified rarefaction wave diagnosis model is presented. 针对国内外对输油管道小泄漏诊断工作存在的不足,研究了一种基于改进的负压波诊断模型的泄漏诊断方法。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
- The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity. 黎曼解涉及的经典基本波包括疏散波、激波和接触间断。
- Radio2 can be heard on the long wave band. 第二广播电台可在长波段收听到。
- I am able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- I was able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
- The tidal wave formed a terrifying wall of water. 海啸形成一堵骇人的水墙。
- See if you can wave down a taxi. 你挥手,看看能否让出租车停下。
- The boat was swamped with a huge wave. 一个巨浪淹没了那条船。
- On the smooth wave in trembling beauty sleep. 在微浪的美妙颤抖中缓缓合目。
- After gaseous detonation reflects on the right wall, the right-traveling rarefaction waves accelerate the reflected shock. 气相爆轰波在右壁面反射后,右行稀疏波加速反射激波。