?角的不变
... 角齿鱼 Ceratodus 角的不变 constancy of angle 角峰 horn ...
?面角守恒
... 面接触系统 surface-contact system 面角守恒 constancy of angle; constancy of interfacial angles 面接触型整流器 surface contact rectifier ...
面角守恒定律
面间角守恒定律
Even the extreme angle isn't a problem, partly because of perceptual constancy the brain's tendency to see familiar objects as having a standard shape and size, despite changes in perspective.
WSJ: A Front-Row Seat at the Movies
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。