1) impulse law
冲量守恒定律
2) law of conservation of momentum
动量守恒定律
1.
Finally,the covariability of the law of conservation of momentum was discussed.
根据对于任意惯性系力的定义式和罗伦次变换分析了质点系相对论动量守恒与质点速度之间的关系,讨论了动量守恒定律的协变性。
2.
Most of the teaching material of mechanics and general physics,in force,look upon the law of conservation of momentum and the law of conservation of moment of momentum as the deduction of the theorem of momentum and the theorem of mement of momentum,overlook original idea of conserved quantity,is not correct.
现行力学教材和普通物理教材大都把动量守恒定律和动量矩守恒定律视为质点组动量定理和动量矩定理的推论，忽视了守恒星的本质意义，是不正确的。
3) law of conservation of energy
能量守恒定律
1.
Then we prove it according to the law of conservation of energy.
根据实际需求归纳了一种宽带的、无损耗的理想合路器模型,然后从能量守恒定律出发,证明了这种理想合路器是不可实现的。
2.
A flexible threshing roller with action softness and less wallop was designed to reduce broken or even interiorly damaged rate caused by the impacting force of rigidity roller,based on the law of conservation of energy.
为降低刚性脱粒滚筒的刚性冲击所带来的水稻籽粒破损,基于能量守恒定律,分析并设计了一种作用柔和、冲击力相对刚性滚筒小的柔性脱粒滚筒。
4) energy conservation law
能量守恒定律
1.
Calculating method of settlement of single piles based on energy conservation law was specified firstly which was used as a tool to analyze the effects of length,diameter,elastic modulus of piles and shaft resistance of surrounding soils on distribution characteristics of axial force and shaft settlement of long piles.
首先阐述了基于能量守恒定律的单桩沉降计算方法,通过计算总结出桩身轴力和桩身沉降分布的一般规律。
5) the Law of Conservation of Energy
能量守恒定律
1.
This paper discusses the reflection about the Law of Conservation of Energy in Electromagnetism from the aspects of Lenz s Law,Maxwell Equations and Poynting Theorem .
从楞次定律、麦克斯韦方程组、坡印廷定理3个方面论述了能量守恒定律在电磁学中的体现。
2.
In the science of conservation of energy, the law of conservation of energy is accounted for ruling and leading position.
在能量守恒科学中,占统治与主导地位的是能量守恒定律。
6) conservation law of energy
能量守恒定律
1.
Accoraing to the effects on energy transfer and conversion by the actionof internal foree in a system and the idea of work done by bodies,the whole moving process of two bodies in different reference systems have been calculated and ayalysised,and the covariance of the principle of work-energy or conservation law of energy is indicated evidently.
从内力在系统的能量传递和传化中的作用出发，充分运用物体作功的概念，计算和分析了由两个物体组成的系统在不同参照系中的具体过程，明确地揭示出功能原理和能量守恒定律的协变性。
补充资料：动量守恒定律
| 动量守恒定律 conservation of momentum，law of 物理学的重要定律之一。它表明任何物质系统（或称质点系 ）不受外力或合外力为零时 ，系统的总动量保持不变。由于动量是矢量，系统的总动量应是系统内各物体（或各质点）的动量的矢量和。系统内的力不论是保守力（如重力或弹性力）或耗散力（如摩擦力）都大小相等、方向相反，产生的动量增量也大小相等、方向相反（见动量定理），其和为零，即不影响系统的总动量。在短暂过程如重锤对桩的撞击过程中，系统外的力如地对桩的磨擦力和锤、桩所受的重力，远比因撞击引起的冲力为小，对系统（锤和桩）的总动量的影响可以忽略不计 ， 仍可近似地视为外力为零的系统。在高速的亚原子粒子系统中，不能用经典的动量概念来描述物体的运动状态及其变化时，动量守恒定律仍成立，表明它比牛顿运动定律更深刻地反映物质运动的本质。它是和窨平移对称性相关联的（见对称性和守恒定律）。 |
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参考词条