单词	factor of safety
释义	factor of safety : the ratio of the ultimate strength of a member or piece of material (as in an airplane) to the actual working stress or the maximum permissible stress when in use Word History First Known Use 1850, in the meaning defined above
随便看	rooked rooker rookeries rookery rookie rookier rookies rookiest rooking rooks rookus rooky room room and board room and space room boss room clerk room divider room for maneuver room service room temperature room trader room-and-pillar roomage roomed

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。