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- centered rarefactional wave 有心稀疏波
- 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 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 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 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。
- Our debate centered on this Olympic Games. 我们的辩论是以这次奥林匹克运动全为中心的。
- 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。
- His whole attention was centered on this matter. 他的全部注意力都集中在此事上。
- He moved the table over to the center of the room. 他把桌子移到房间中心。
- The land is destined for a new shopping center. 这块地已被划作为营建一个新购物中心之用。
- 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。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- All her hopes centered on her son. 她的全部希望集中在她儿子身上。
- As the quenching speed of the strong rarefaction wave reaches610Ks-1, a nonequilibrium ionization-recombination process takes place, during which the ion recombination with electrons dominates. 首先通过反射激波加热使试验气体电离,随后利用在激波管高压室端部反射的强稀疏波使反射激波后5区离化气体快速冷却,由于稀疏波的冷却速度达到610Ks-1,创造出使离化气体处于以电离复合为主的非平衡过程的条件。
- The strikers paraded through the city center. 罢工队伍游行穿过市中心。
- Gun recoil force reduction technology mainly include out-of-battery, superlong and tandem superlong recoil,2D recoil, muzzle braking, rarefaction wave gun and electromagnetic rheologic fluid etc. 膨胀波火炮红外目标特征太明显,要求能精确控制火炮相关机构,需系统、全面地研究探索内弹道技术、火炮自动机技术等相关技术。