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Angular momentum is the most important vector in the research ofc...

在原子和分子层次的动力学研究中，角动量无疑是最重要的一种矢量。

Purpose: The purpose of this study was to analyze the influence of angular momentum on the triple jumpers' performance.

目的：本研究目的在分析人体角动变化对三级跳远选手成绩表现之影响。

In quantum mechanics, spin is an intrinsic property of all elementary particles related to angular momentum.

量子力学中，自旋角动量是与角动量相关的所有基础粒子的固有属性。

Furthermore, a new method, which can measure light's orbital angular momentum directly, is presented.

并且设计了一种新的，能用来直接测量光束轨道角动量的方法，并以此成功地测量了复杂像散椭圆高斯光束的轨道角动量。

"It seems to be an almost perfect example of translating the angular momentum of his body into the linear momentum of the strike," said Rose.

"这似乎是一种几乎完美的例子，翻译的角动量他的身体变成线性的势头，罢工，说："玫瑰。

We find that the mechanism causing angular momentum loss of these systems is most likely magnetic braking.

从这些研究中发现了W UMa型相接双星中发生的并对其演化起重要作用的一些物理过程。

An increase in the magnitude of the angular momentum simply means that the body rotates more rapidly.

角动量大小的增加，意思就是物体转动更快了。

In Chap. 6 we shall generalize the discussion and take up angular momentum.

在第六章中我们将推广这一讨论，而且还将考虑角动量。

Planet migration will probably increase the angular momentum of the star.

行星的移动很有可能增加恒星的角动量。

Now even the stationary atoms and standing together, it is a natural condition of angular momentum.

现在人们更把原子中的定态与驻波联系起来，十分自然地就得到了角动量量子化条件。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。