“double-acting seal”概念、定义、翻译-科学时代

单词	double-acting seal
释义	工程与技术词汇手册 double-acting seal 双动密封；双作用密封
随便看	deferral deferral option deferral time deferred deferred account deferred air attack deferred annuity deferred annuity deferred annuity deferred annuity deferred annuity deferred annuity deferred asset deferred asset deferred asset deferred assets deferred assets deferred benefit deferred bond deferred bonus deferred charge deferred charge deferred charge deferred charge deferred compensation

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

double-acting seal