smoothly hinged Implies that the force at the hinge can be treated as a single force at an unknown angle, rather than requiring the consideration of a couple as well.
smoothly hinged
数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。