“long-time trend”的概念、定义、翻译、参考文献-科学参考

单词	long-time trend
释义	long-time trend [¦löŋ ´tīm `trend] See <<secular trend>>
随便看	proportion proportional band proportional control proportional controller proportional counter proportional counter tube proportional dividers proportional elastic limit proportional ionization chamber proportional limit proportional navigation proportional parts proportional-plus-derivative control proportional-plus-integral control proportional-plus-integral-plus-derivative control proportional reducer proportional region proportional spacing proportional-speed control proportioning probe proportioning pump proportioning reactor proposition propositional algebra propositional calculus

科学参考收录了103327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。