肯定否定定律 affirmative and negative law

普朗克黑体定定律 Planck's blackbody law

定比定律 law of definite proportions ; law of constant proportion ; law of definite composition

法律、规定、定律 Legge

定组成定律 law of constant composition ; [化学] definite composition law ; [化学] law of definite composition

定标定律 Scaling law

能量定恒定律 law of conservation of energy

左手定则左手定律 left hand rule

不定比定律 [统计] law of variable proportions

核稳定性定律 rules nuclear-stability