查询词典 high velocity

The resolidified layers of directional or mat-like structures composed of g phase with good mechanical properties could be prepared by the high velocity laser resolidification of the Ti50Al50 and Ti-45Al-2Cr-2Nb alloys respectively.

在高速激光重凝等原子比 Ti50Al50和全层片 Ti-45Al-2Cr-2Nb 合金中分别获得了由定向和芦席状亚稳 g 相组成的高性能重凝层。

The possibility of using a reaction jet had interested aircraft designers for a long time, but initially the low speeds of early aircraft and the unsuitably of a piston engine for producing the large high velocity airflow necessary for the jet presented

使用反作用喷气的可能性令飞机设计师们向往已久，但在最初存在很多障碍，这是因为早期飞机的速度很低和活塞发动机不适合于产生&喷气式&所必需的大量高速气流。

Objective To study the wounding characteristics of super high velocity weapon and the relationship between the wounding effects and energy.

目的研究超高速武器对生物的杀伤特点以及致伤能量和伤情之间的关系，为其防治提供实验依据。

When the electric discharge is very strong, collisions of high velocity electrons with molecules of gas result in no loss in momentum, and electron avalanching occurs.

当放电是非常强劲，碰撞的高速电子与气体分子造成任何损失的势头，电子avalanching发生。

Instead, bulges with unusually high velocity dispersions are observed to be unusually compact.

相反，具有异常高的分离速度的星系结构却很紧密。

The slipstream boundary conditions are imposed at the surface swept by prop to avoid the mass calculation of simulating the prop circumrotating with high velocity. The aerodynamics of aircraft can be simulated numerically by solving Euler equations exactly and efficiently.

为了解决精确模拟螺旋桨高速旋转带来的计算量大的问题，本文在螺旋桨旋转平面建立滑流边界条件，利用Euler方程可以准确高效的对全机气动力进行数值模拟。

Thrust is generated by the expelling of mass flowing through the nozzle at high velocity.

主旨是所产生的大规模驱逐流经喷嘴在高流速。

In our experiments,the propagationvelocity and the coupling coefficient for the high-velocity surface acoustic mode ismeasured on a free surface as well as on a metalized surface.

在实验中，采用四种经常使用的压电晶体，对这种表面高速模式进行声速和耦合系数的测量，分别在自由表面和金属化表面进行。

Copper nanoparticles were modified by surface modifier, methyl - methylacrylate, and minified by use of fluid-flow comminuted method, the disper sity and dispersion stability of the modified copper nanoparticles as additive i n CD 15W/40 engine oil were evaluated by high velocity centrifuger; its morpholo gy and particle size were tested by TEM and XRD analysis; and its tribological p roperty in CD 15W/40 engine oil was investigated by ball on pan tribo-tester.

采用化学改性法与液流粉碎机械法对纳米铜微粒进行了表面改性和分散研究，采用高速离心机考察了表面改性后纳米铜微粒作为添加剂在CD15W/40柴油机油中的分散性及分散稳定性，采用TEM、XRD测试了表面改性纳米铜微粒的形貌及粒径大小，采用球盘磨损试验机考察了表面改性纳米铜微粒作为CD15W/40全配方调配油添加剂的摩擦学性能，用SEM、EDS观察了磨损表面的形貌、线扫描、面分布及元素含量，分析了纳米铜微粒在摩擦过程中的减摩润滑机理。结果表明：甲基丙烯酸甲酯化学改性结合液流粉碎方法处理后纳米铜微粒的粒径进一步均匀、细化，平均粒径为24nm，并在CD15W/40油中分散性好，悬浮稳定时间长。

In land areas with highvelocity rock outcrops,the seismic data recorded by vertical geophone deviate from the data of reflected compression wave with the increment of dip angle of strata and incident angle of reflection wave,which results in the difficulties of conventional seismic exploration in the near-surface high-velocity rock outcropped areas.

结果表明，当近地表速度为低速时，可以将垂直检波器记录的地震记录近似等同于反射纵波记录，这就是常规地震勘探在低速带区勘探取得成功的原因之一；当近地表速度为高速时，随着界面倾角和入射角的增加，垂直检波器记录的地震记录等效为反射纵波记录的误差增大，这就是存在高速近地表区地震勘探的难点之一。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。