“Simon helium liquefaction system”的概念、定义、翻译、参考文献-科学参考

单词	Simon helium liquefaction system
释义	Simon helium liquefaction system Encyclopedia 工学氖氢氦液化系统释 Simon helium liquefaction system西蒙氦液化系统采用绝热放气的原理获得少量液氦的系统。
随便看	closed space closed sphere closed star closed string closed subalgebra closed subbase closed subcomplex closed subfield closed subgroup closed submanifold closed subscheme closed subset closed subspace closed substructure closed subsystem closed subvariety closed surface closed surface integral closed syllable closed system closed system of elements closed system of functions closed system of hot water supply closed term closed timelike curve

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。