barycentric dynamical time (TDB)是什么意思

网络释义

用法例句

Arithmetic of welding visual image centroid and its characteristics;

焊接视觉图像质心算法及其特性

A new technology of weld tracking based on image centroid;

基于视觉图像质心的焊缝跟踪新技术

Three-dimensional reconstruction of lenticular nucleus and determination of its centroid and volume;

人脑豆状核三维重建及其质心、体积的测量

In the center of mass motion theorem of rational mechanics,when the centre of mass is still and "ΣF=0",the location of a certain particle in the centre of mass system,in its final motiom time,is questioned.

理论力学质心运动定理中 ,当ΣF =0 ,质心处于静止状态时 ,求解质点系中某一质点在运动末时刻的位置 ,通常要求出质点系的质心在运动始、末位置的坐标值 ,然后由两坐标值相等的条件解出 。

By analysing the relation of every particle,centre of mass,internal force and outside force,this paper explains that the quiescent rubforce is the ultimate reason of moving ahead,where the Newton s secend dynamic law is used.

首先运用牛顿第二定律对步行起动时组成人体的各个质点和质心的内力和外力的关系进行分析,解释了静摩擦力是人的质心向前平动的根本原因。

According to theorem of motion of centre of mass and theorem of moment of momentum about centre of mass, we derive the theorem of moment of momentum about instantaneous center of rotation.

从质心运动定理和相对质心的动量矩定理出发，导出了相对瞬心的动量矩定理。

A concise calculating approach to center of mass of some abnormal profile thin plates;

一类异型匀质平板质心的简明计算方法

Comments on "relativistic theorem for the motion of center of mass";

评“相对论的质心运动定理”

The law of relativistic motion of the center of mass and mass defect;

相对论的质心运动定理与质量亏损

Calculation of height of mass center of sightseeing bus for reducing body height;

旅游客车降低车身高度后质心高度的计算

Inverse solution for robot PUMA560 kinematics based on coordinate frame attached to mass center;

机器人PUMA560的质心坐标系运动学逆解

Based on a large seismically isolated structure,the paper analyzed the frequency and mode,the distribution of mass center and the improvement of rubber packing arrangement by SAP2000.

针对国内某大型隔震建筑,借助SAP2000建立下部结构—隔震层—上部结构整体系统的空间模型,就隔震结构的振型与频率、质心分布进行了分析和橡胶垫布置的改进计算。

Research on Metrical Technology of Dynamic Unbalance and Barycenter for Fish Torpedo;

鱼雷动不平衡与质心检测技术的研究

Based on the practical application of network topology stability,a hybrid cluster-head selected algorithm was put forward,it contained a cluster-head selected method which was based on the barycenter(or the energy center) and a cluster-head selected method which was based on the surplus energy.

针对网络拓扑结构稳定的实际应用,提出了一种混合簇头选举算法,包括以质心(能量中心)为基础的簇头选举方式和以剩余能量为基础的簇头选举方式。

The result shows that there are significant differences such as the final stride approach and horizontal velocity of barycenter,swing speeding of swing leg,the factors of buffer and stretch of the take-off leg in the take-off technique between Chinese male high-jumpers and foreign ones.

通过三维摄像对我国部分优秀男子跳高运动员的起跳技术进行运动学分析,研究结果表明:我国部分优秀男子跳高运动员的最后一步步长及质心水平速度、摆动腿的摆动速度、起跳腿的缓冲蹬伸方面与世界优秀选手存在差距。