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There is diving and sailing, basic waterskiing, and slalom waterskiing.

比如说潜水、帆板运动、初级滑水运动和障碍滑水运动

Based on the principle of mass-changing mechanics,this paper analyzes the process of water wheel raising water,educes its movement differential equation s in its three stages from starting to stable running,obtains solutions of the equations,and calculates on the angular velocity of the waterwheel in constant motion.

应用变质量力学原理对农用水车在提水过程中所经历的三个不同阶段,即在运动过程中水车的受力和运动量都在发生变化的情况下,对其动力学问题进行了较为深入的分析,导出了水车由起动至稳定运转三个阶级的运动微分方程,并得到了它们的解答,进而求得水车在趋于定常运动时的转动角速度。

According to this result, an optimal procedure can be employed to determine these parameters in the kinematic design of PKM, which enable the desired ratio of workspace volume, well-conditioned dexterity, and desired velocity capability to be simultaneously achieved without occurrence of strut interference.

本文以基于6-TPS Stewart平台的并联机床为研究对象,研究了该类机床数控系统中有关运动控制的一些关键问题,并针对在运动控制中引发的微分运动分析与综合、解轨迹上的非线性特性及其引起的插补原理性误差等并联机床的运动学性能问题进行了研究。

At last, with the position/velocity servo control modes, the precise reciprocating motion of single coordinate flat roofs and continuous whirligig of platens are achieved.

首先分析永磁同步电机及其驱动器的位置/速度伺服控制模式,然后提出在同一个运动控制系统中应用多伺服控制模式的概念,最后,基于位置/速度伺服控制模式,实现了坐标平台的精确往返运动控制和滚筒的连续匀速旋转运动控制,同时介绍了系统的构成,并对系统参数作了详细分析。

Mass volleyball also had certain of advance, but we also see the universal depth that mass volleyball exercise withy wide and degree is not enough.

随着人们生活水提高及全民健身运动的开展,群众性排球运动有了一定的进步,但我们也看到群众性排球运动的普及深度与广度不够。

The paper describes theory of beam noise reduction in adiabatically varying magnetic field, deduces the relation between magnetic field and noise , gives out fourth order Runge-Kutta formula of 2-order differential equation, simulates the effects of different magnetic field on electron motion, the results show good agreement with theory analysis,it confirms that adiabatically varying magnetic field near the cathode can reduce the beam noise.

文章描述了回旋波保护放大器电子束绝热降噪的机理,推导了噪声与磁场的关系和二阶微分方程的四阶精度龙格-库塔法求解电子运动方程的公式,编程计算了电子在不同磁场中的运动轨迹,模拟了不同磁场对电子运动的影响,模拟结果与理论分析相符合,证实了阴极表面附近的缓降磁场可以降低电子束的噪声。

The platelet aggregative function and plasma concentrations of TXB2 and 6-keto-PGF1a were measured in exercise groups, and compared with that in control group.

为探讨过度运动训练对运动能力的影响,以大鼠为实验对象,以游泳作为运动方式,并给予各组不同运动量训练8周,于训练前后测定血小板聚集功能及血浆TXB2、6-keto-PGF1α浓度。

In all the 476 segments, 29 segments (6.09%) were hypokinetic or akinetic, and 9 segments (1.89%) were paradoxical motions or ventricular aneurysms.

在476个节段中,29个节段(6.09%)运动减弱或不运动,9个节段(1.89%)出现矛盾运动或室壁瘤。

There is a great variety of tectonic compounding the basic types of which include the compounding of various structural features, and that between structural features and geological formations as well as that of various geological formations. The compounding structures may be either autochthonous or allochthonous;they may also comprise structural features caused by the same manner of tectonic movements or by different manner of tectonic movements ;and finally ,there may be compounding of structures of all sizes ranging from microscopic ones up to tectonic belts or even tectonic domains.

构造复合存在多种多样的形式,其基本形式不仅包括各种形迹的复合,建造与形迹的复合,而且包括建造与建造的复合;就其复合的空间位置而言,既有原地的复合,也有异地的复合;就运动方式而言,既有同方式运动的复合,也有不同方式运动的复合;就构造复合的规模和等级而言,小至小型或显微构造,中至露头规模的构造形迹复合,大至构造带、构造地块、构造体系乃至巨型构造域的复合。

It is more and more popular amang the people thronghout the nation for its specific national characteristics and popularity. With combination of documentary analysis and investigations, this research conducts a comprehensive study which explores the social foundation of the emerging, development situation, and the development modernizing of the dragon dance sport. In particular this study provides a wider analysis of...

采用文献法、调查法等多种研究方法,对中国传统龙舞表演产生的社会基础,现代舞龙运动发展现状、发展的现代化等问题进行研究,分析了传统龙舞表演的起源以及现代舞龙运动所带来的种种社会经济文化现象,进一步探讨了具有民族特色体育文化的舞龙运动与现代化社会发展的关系。

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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法,同时,采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。

Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...

嘿大乌鸦,个别谎言的事不要再-其所有的组织的谎言,在支持。