“modern machine building-industry in China”的概念、定义、翻译、参考文献-科学参考

单词	modern machine building-industry in China
释义	modern machine building-industry in China Encyclopedia 工学﹝中国机械工业﹞释 modern machine building-industry in China中国近代机械工业 1840年，第一次鸦片战争到1945年第二次世界大战结束，中国近代机械工业逐步由手工业作坊式小生产向使用动力机器的生产方式转变。
随便看	positive integral kernel positive interaction between nutrients positive ion positive ion, cation positive ion mode positive kernel positive kurtosis positive leap second positive lens Positive likelihood ratio positive limit point positive limit set positive linear functional positive linear operator positive link positive literal positive logic positive logical calculus positive logical formula positive lossless storage positively definite positively definite form positively definite kernel positively definite matrix positively definite quadratic form

科学参考收录了854744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。