“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	digestion test in vitro digestion test in vivo digestive apparatus digestive formula digestive gland digestive juice digestive organ digestive system digestive system drug digestive system of horse digestive system of pig digestive system of poultry digestive system of the ruminents digestive tract digestive tract digestive juice digestive tube digest periodical digger for planting Diggers digger wasp digger wasps Digges digging and cutting animation diggings ecological reconstruction digicon

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。