“null”的概念、定义、翻译、参考文献-科学参考

单词	null
释义	null Physics null①零，零的 ②无效的，无价值的 ③类光[的]^† Mathematics null零的；零 Computer 数据库数据库管理系统及其实现技术释文 null空值
随便看	Lake Qiong-Mount Luoji Scenic and Historic Area lake-regime shift Lake Sailimu Scenic and Historic Area lakes and reservoirs lakes connected with Yangtze River lake sedimentary type lake sediment geochemical survey lake sediment microbes lake sediment transport Lake's food factor decision theory Lakeside Lakeside Park of Jinji Lake lakeside subfacie lakes in China Lakes of China Lakes of Ounianga lakes of scenic regions Lake Songhua Scenic and Historic Area Lake Superior Lake Togo lake topography Lake Torrens Lake Turkana Lake Victoria Fisheries Organization Lake Volta

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。