“air extraction equipment”的概念、定义、翻译、参考文献-科学参考

单词	air extraction equipment
释义	air extraction equipment Encyclopedia 工学表面式凝汽器释 air extraction equipment抽气设备将凝汽器中的空气和不凝结气体不断地抽出并排入大气，以保持凝汽器所限定真空的装置。
随便看	doubly-magic nucleus doubly magic square doubly noncentral F-distribution doubly nonnegative matrix doubly ordered set doubly periodic function doubly plus operator doubly projective variety doubly resonant oscillator doubly ruled surface doubly salient motor doubly salient motor with electric excitation doubly stochastic matrix doubly stochastic Poisson process doubly straight line doubly transitive group doubly truncated Witt graph doubly well-ordered set doubtful region Doucai Chicken Cup Dou Chaorong Doudafu Hall Douga dough doughing time

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。