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

单词	relative density
释义	relative density(r.d.) The ratio of the density of a substance to the density of some reference substance. For liquids or solids it is the ratio of the density (usually at 20°C) to the density of water (at its maximum density). This quantity was formerly called specific gravity . Sometimes relative densities of gases are used; for example, relative to dry air, both gases being at s.t.p
随便看	kilo- kilogram kiloton weapon kilowatt-hour kinematic equation kinematic viscosity kinematics kinetic effect kinetic energy kinetic equations kinetic theory kinetics Kirchhoff's law of radiation Kirchhoff's laws Kirchhoff, Gustav Robert Klein-Gordon equation klystron knocking knot theory Knudsen flow Kohlrausch's law Kovar Kramers theorem Kundt's tube L-D process

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。