“gradient operator”的概念、定义、习题解题方法及翻译-物理辞典

单词	gradient operator
释义	gradient operator(grad) The operator ∇ = i∂/∂x + j∂/∂y + k∂/∂z , where i, j, and k are unit vectors in the x, y, and z directions. Given a scalar function f and a unit vector n, the scalar product n.∇f is the rate of change of f in the direction of n. See curl; divergence
随便看	periodic motion peripheral device periscope Permalloys permanent gas permanent magnet permeability permittivity permutations and combinations perpetual motion personal computer perturbation perturbation theory perversion PET peta- pewter Pfund series pH pH scale phase phase angle phase diagram phase modulation phase rule

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。