velocity n. 1.迅速;快速。 2.速度,速率。 3.周轉率。 at a velocity of 100 miles per hour 用每小時一百英里的速度。 dart off with the velocity of a bird 像鳥一樣迅速飛跑過去。 drag-free velocity無阻力飛速,真空飛速。 escape velocity(克服地球引力的)第二宇宙速度,逃逸速度。 final velocity (發射物的)終速。 initial [muzzle] velocity(發射物的)初速[腔口速度]。 uniform [variable] velocity勻[變]速。
Methods are available for the measurement of absolute velocity constants but they are by no means easy to apply . 雖然某些方法對測定絕對速度常數是合用的,但不容易實施。
Under the same relative velocity , two vehicles with slower absolute velocities have more transient aerodynamic influence on each other during the overtaking process 在相同的相對速度下,絕對速度較低的兩輛車在超車過程中產生的瞬態氣動影響更大。
The absolute velocity was decomposed based on the law of velocity triangle , the absolute tangential velocity , the relative velocity and the relative tangential velocity were presented in this paper 在測得轉輪內部的絕對速度矢量后,按速度三角形原理進行分解,得到了絕對速度切向分量、相對速度及相對速度切向分量。
The dynamic meshing technique was adopted to realize the 3 - d transient numerical simulation of vehicle overtaking process in order to study the influence of relative velocity and absolute velocity on the aerodynamic characteristics of the overtaking and overtaken vehicles during the overtaking process 摘要為了研究超車過程中相對車速和絕對車速對汽車氣動特性的影響,采用動網格技術實現了超車過程的三維瞬態數值模擬。
This thesis reviewed the mesh theory of plane double - enveloping worm gearing : the equations including the first enveloping equation , the second enveloping equation , contact line equations of the first enveloping and the second enveloping , boundary equations of the first enveloping and the second enveloping , the equations of relative velocity and absolute velocity 本文介紹了平面二次包絡環面蝸桿傳動的嚙合原理基礎:第一次包絡嚙合方程和第二次包絡嚙合方程,相對速度、相對角速度方程,第一次包絡的接觸線方程,第二次包絡的接觸線方程,以及第一次、第二次包絡的一界線方程和二界線方程。
In this thesis , the basic arithmetic of piv software - cross - correlation arithmetic is introduced in detail , during the data process , through processing the two sequential images by the cross - correlation arithmetic , the vector charts of particles velocity can be obtained , so is the chart of absolute velocity , with velocity decomposed into the radial velocity and axial velocity 本文對試驗所獲得的連續圖像通過互相關算法,獲得顆粒速度矢量圖,并將速度分解為徑向速度和軸向速度,對每一小區域內的顆粒按速度方向不同進行速度平均,獲得顆粒的平均速度分布曲線。