“食管环”的概念、定义、翻译、参考文献-科学参考

单词	食管环
释义	食管环 Encyclopedia 医学消化释 esophageal ring食管环食管、胃交界处食管侧的同心环或隔膜样狭窄。
随便看	improper mapping improper maximum improper minimum improper motion improper movement improper multiple integral improper node improper notation improper number improper orthogonal mapping improper orthogonal matrix improper orthogonal transformation improper partial graph improper plane improper point improper principal ordinal improper prior improper quadric improper quotient object improper rational function improper refinement improper representation improper rotation improper rotation group improper sales behavior

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。