“pooper-scooper law”概念、定义、翻译-科学时代

单词	pooper-scooper law
释义	法学词汇手册 pooper-scooper law （美国）狗粪法（宠物主人有义务清除宠物在公共场合的排泄物的法律）
随便看	particle charge particle cloud particle cluster particle collision particle concentration particle confinement time particle-conservation equation particle containment time particle contamination particle counter particle counting method particle current density particle decay particle density particle density particle detection particle detector particle diameter particle diameter particle diameter particle diameter particle dispersoid particle displacement particle drift particle dynamics

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。