守恒

Since this space robot strictly abide by the rules of momentum conservation and angular momentum conservation, its dynamic equations exhibit a strong nonlinearity.

此类空间机器人系统严格遵守动量守恒和角动量守恒，所以其动力学方程表现出强烈的非线性性质。

Based on the common D-H modeling methods for ground robot and the conservation of momentum and conservation of angular momentum suitable for SR, continuous motion trajectory control modeling algorithm for SR is developed.

基于地面机器人常用的D-H建模方法和空间机器人满足的动量守恒和角动量守恒原理，提出了SR连续运动轨迹控制建模算法。

With a simple symmetrical electromagnetic field,the law of conservation of momentum and the law of conservation of angular momentum for electromagnetic field and charges system are investigated.

利用简单对称性的电磁场，讨论了场和电荷系统遵从的动量守恒、动量矩守恒定律

The tangent space and normal space of the robot motion curve is constructed by using Newton-Euler orthogonal method, which satisfies the restrictions of linear and angular momentum conservation of free-floating space robot system. An analytical expression of joint actuation torque in the floating state is given by using this method.

根据空间机器人自由漂浮状态时系统动量守恒的特点，采用Newton-Euler正交方法构建了满足系统动量守恒约束条件的空间机器人运动曲线法空间与切空间基底，并以此基础得到了自由飘浮状态下的空间机器人关节力矩的显式表达式。

Under these conditions the conservation of energy is equivalent to the conservation of mass.

在这种条件下，能量守恒和质量守恒是相等的。

Finally, based on the idea of dynamic conservation of mass ,the conservation of energy and infinite partition.

最后利用质量动态守恒和能量守恒及无穷分割的思想，推出了物质的最终组成，并统一到一种物质——能量子。

This model couples the conservation of mass, momentum and species equations with transport equation in the membrane.

模型耦合了连续方程、动量守恒方程、物料守恒方程和水在质子交换膜中的传递方程。

Based on analyzing the mechanism of heat and water transfer in unsaturated soil, and the conservation principles of mass and energy, the theoretical model of heat and water migration in unsaturated soil was established.

理论上，通过对土壤内热和水分迁移机理分析，根据质量守恒和能量守恒原理，建立了土壤非饱和区热和水分迁移的理论模型。

In this paper, it includes several parts as follows: Based on the conservation laws of mass and momentum equilibrium in transient liquid pipe flow, the basic equations are introduced in detail.

本文主要从以下几个方面进行了研究：从连续介质理论的质量守恒和动量守恒原理出发，介绍液体管道瞬变分析的基本方程组即波动方程组的详细推导过程。

This article analyses the meaning and prerequisite of conservation of mechanical energy , and poses different standpoints on describing the law of conservation of mechanical energy in some textbooks.

分析了机械能守恒的内涵及条件，对有的教材关于机械能守恒定律的表述提出了不同的见解。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。