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角分布

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As a test problem, the steady flow fields and hydrodynamic forces of a 6:1 prolate ellipsoid at different incidence angle are computed. Computed results including surface pressure coefficient, surface friction coefficient, and body hydrodynamic coefficients, are compared with experimental and numerical ones of published papers, the agreement is satisfactory.

作为算例之一,给出了6:1椭球体在不同攻角下定常流场和水动力的数值计算结果,包括物体表面的压强系数、切应力系数的分布及物体所受升力系数、阻力系数和力矩系数随攻角的变化规律,并与国外文献的计算和实验结果进行了比较,符合程度令人满意。

The normal distribution of the attitude angles is presented and the propagation of their errors in coordinate transformation in autonomous land vehicle is analyzed.

建立了姿态角误差分布的正态概率模型,深入研究了姿态角误差在陆地自主车三维视觉处理中的传播特性。

When scattering angle is in the range from 0.025π to 0.997 π radian, the scattering phase function varies obviously.

同时比较了偏振状态下多粒子和单粒子散射相位函数随散射角和极化角的分布。

Through studying distribution regularity of switching angle in SHET and the problem found when improving quality and efficiency of output waveform, optimal strategies that double switching angles and minimum pulses are ignored are proposed, the goal that hardware circuit is convenient to be made and more harmonics are eliminated by using less loss switching transistor is reached.

通过对特定消谐技术中开关角的分布规律及在提高输出波形质量和效率时所遇问题的研究,提出了省略开关角对及省略窄脉冲的优化策略,达到了便于硬件实现、功率开关管的损耗较小、而消除的谐波次数较多的目的。

Relatively speaking, the drawing for tube with fixed short plug technology would reduce the difference of the residual stress between inside and outside of the tube, and increases its uniformity.

外模半锥角对固定短芯头拔管材的轴向残余应力具有显著的影响;当半锥角为12 时,拉拔后管材的轴向残余应力值较小且分布均匀。

The hypo-volcanic crytoexplosion Breccia rock body is formed of granite magma, which is rise to the lower of the earth s crust along the east-western shear zone and exploded below the Archean fundus rock. The felstone vein and the hypo-volcanic crytoexplosion Breccia rock are from the same magma source, and are formed in the different evolution stages.

香炉碗子金矿区分布的次火山隐爆角砾岩体是由花岗质岩浆沿东西向脆~韧性剪切带上升到地壳浅部隐爆太古代基底岩石所形成,霏细岩脉与次火山隐爆角砾岩来自同一岩浆源,为同一岩浆活动不同演化阶段所形成的。

In the intersatellite coherent optical communication, the vibration of a satellite will lead to a pointing error of transmitting and receiving antennas, which will decrease the signal-to-noise ratio and increase the bit error rate. In this paper, the Rayleigh distribution is taken as the pointing error model caused by satellite vibration, and PSK homodyne communication scheme is used as an example to analyze the influence of the satellite vibration on the system instantaneous BER and average BER. The simulation calculation result of BER is given.

针对星间相干激光通信中卫星平台的振动造成发射天线和接收天线的瞄准角误差,使系统信号信噪比下降,误码率增加,该文以瑞利分布作为振动造成的瞄准角误差模型,结合高斯本振光和艾里信号光外差检测模型,以PSK零差通信体制为例分析卫星振动对系统的瞬时误码率和平均误码率的影响,给出误码率仿真计算结果。

The hypabyssal breccia pipe structure is located in the intersection segments of linear strike faults, and possesses distinct vertical zonation.

控矿角砾岩筒的分布受线性走滑断裂构造控制,角砾岩筒垂直分带明显。

Our observation indicates that capsaicin as a nociceptive chemical irritant can selectively activate primary afferent C-fibers to release SP and Glu from their central terminals in the superficial dorsal horn. It seems that the release of SP and Glu acting on NK-1 and NMDA receptors results secondarily in the activation of dorsal horn neurons, transmitting nociceptive information to supraspinal structures.

以上结果表明辣椒素作为一种伤害性的刺激源,可选择性兴奋C类传入纤维,引起其分布于脊髓背角浅层内的末梢大量释放SP和Glu,通过相应受体兴奋背角伤害性感受神经元,包括上行脊-丘束投射神经元,将痛觉信息传递至脑。

The coesite-diamond-bearing eclogite distributed in the northern part of the UHPM belt suffered three stages of metamorphism. The first stage is the Ep amphibolite facies metamorphism, which is represented by the paragenesis of phe+Qtz+Cro/Bar Bar+Ep+Ab occurred as inclusions in Grt and Omp; The second stage is the peak metamorphism of eclogite facies with mineral assembledge of Grt+Omp+Coe±Dia±Ky±Zo±Phe+Rt. The P -T condition is 800±50℃,≥28Kb; The third stage is the amphibolite facies retrograded metamorphism from the peak one, which can be divided intothe early amphibolite facies stage with the mineral assembledge of Amp+ Pl+Di+Qtz±Ep+Ilm/Ttn and the late greenschist facies one with the mineral assembledge of Ep+Chl+Bi+Tr+Ab.

分布于超高压变质带北侧的柯石英榴辉岩经历了3个阶段的变质作用:(1)早期绿帘—角闪岩相阶段,以出现在石榴石和绿辉石中的包体矿物多硅白云母、石英、冰蓝闪石或青铝闪石、钠长石等为代表;(2)峰期柯石英榴辉岩相阶段,其矿物组合为Grt+Omp+Ky+Phe±Zo+Coe±Dia+Rt,其变质温度压力为800±50℃,≥28Kb;(3)退化变质作用阶段,早期为角闪岩相,以Amp+Pl+Di±Ep+Qtz+Tit等退变矿物组合为代表;晚期为绿片岩相,以绿帘石、绿泥石、黑云母、透闪石及钠长石等矿物为代表。

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推荐网络例句

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。