查询词典 velocity

The velocities of ultrasonic wave and rock drillability are measured in perpendicular and parallel directions of the bedding plane of core samples which were cut from the approach hole of Chinese continental scientific drilling. Rock drillability index and P-wave velocity anisotropy coefficient are calculated from the testing data; and the results are discussed.

通过室内实验分别测定了岩芯垂直于和平行于地层层面方向的可钻性及声波速度，得到了岩石可钻性各向异性指数和波速各向异性系数，并对结果进行了讨论。

The movement characteristic analysis of elbow-bar framework is dealt with to gain displacement, velocity and acceleration of moving bedplate by adopting polar coordinates vector method.

具体内容和创新归纳如下：1 采用极坐标矢量法对肘杆机构进行了运动特性分析，得到活动平台的位移、速度和加速度等参数。

In this paper, the quality of unstructured grids generated by Delaunay Triangulation Method and Bubble Packing method is compared by the classical lid-driven square cavity flow solved by SIMPLE algorithm on collocated unstructured grid. The velocity distributions on vertical and horizontal center lines are in good agreement with bench mark, which shows that both of the two grids can be used in CFD.

本文利用经典的方腔顶盖驱动流对Delaunay方法和Bubble Packing方法所生成网格的质量以及基于非结构化同位网格的SIMPLE算法进行了验证，发现两种网格均可用于单相流动的CFD计算，垂直与水平中心线上的速度分布与基准解相比非常吻合并可得到良好的结果。

A star precipitated with great apparent velocity across the firmament from Vega in the Lyre above the zenith beyond the stargroup of the Tress of Berenice towards the zodiacal sign of Leo.

380一颗星星从天顶上天琴座"织女一"越过后发星座的星群，明显地以高速度朝着黄道十二宫的狮子宫直冲过去。

This paper systematically expounds the basic principles of hydrodynamics and gives a kind of theoretical estimate on the necessity of safety and protection in large train-acceleration by the application of Bernoulli Equation and its principle of pressure reduction from fluid velocity increment.

对流体力学的基本原理进行了系统表述，应用伯努利方程及其流速增加压强降低原理，对铁路提速中安全防护的必要性提供了一项理论估算。

By means of variable substitution, it is found that the differential equation of motion is a Bessel equation. Based on the equation, responses of elastic displacement, velocity, acceleration of skip and cable tension close to sheave were deduced.

通过变量代换，发现箕斗运动微分方程是可求解的Bessel方程，从而得到了装载过程中箕斗的弹性位移、速度、加速度和天轮处钢丝绳的张力的解析表达式。

This technology can automatically detect the correctness of velocity field, which greatly improves the computation accuracy of focusing operator and the accuracy of bifocal amplitude-preserving imaging.

该技术可以自动检测宏观速度场正确与否，大大提高了聚焦算子的计算精度和双聚型保幅成像精度。

The caster on the U.S. team exhibited well in the game, and we just had one bingle the whole competition, her drop ball make us busy on the field, with a striking velocity.

在中国队和美国队的比赛中，美国队的投手发挥得特别出色，整场比赛只让我们打出了一支安打，她投出的下坠球让我们很不适应，而且球速也很快。

The binomial deliverability equation can only be used to describe the high velocity non-Darcy filtering flow. For low permeability fracturing gas wells, due to low permeable property and high flow conductivity of the formation, the filtering flow laws of the formation are different from those before fracturing, and binomial deliverability equation can not be used for the flow condition of gas wells, therefore, new equation is needed.

二项式产能方程只能描述高速非达西渗流，对于低渗压裂气井，地层的低渗透性和裂缝的高导流能力使得其渗流规律已经和压裂前大不一样，二项式产能方程已无法描述气井的生产状况，必须建立新的方程。

A formula is deduced for the velocity induced by the vortices in two-dimensional shallow water flows and it is used to correct the Biot-Savart law.

建立了二维浅水流动的旋涡诱导速度公式，在已知旋涡场和胀量场时，由该表达式可确定流动速度场。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷