“ball-jointed screw”的概念、定义、翻译、参考文献-科学参考

单词	ball-jointed screw
释义	ball-jointed screw 万向球铰螺杆
随便看	social morphology social national income social nature of property relations social needs social net output value social objective social opportunity cost social overhead capital social overhead infrastructure social parasitism social participation social phenomenon social planning social plant social product social profit social psychology social purchasing power social reserve funds social responsibility of manager social returns to education social risk social science social security funds social security program

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。