“alternation”的概念、定义、翻译、参考文献-科学参考

单词	alternation
释义	alternation [´ȯl·tǝr`nā·shǝn] ^MATHEMATICS See <<disjunction>> ^PHYSICS Variation, either positive or negative, of a waveform from zero to maximum and back to zero, equaling one-half of a cycle.
随便看	crossvein cross ventilation crosswind cross-wire weld Crotalidae crotch crotch height crotonaldehyde crotonic acid croton oil croup croup-associated virus croute calcaire Crout reduction Crova wavelength Crow crow crowbar crowbar voltage protector Crowe process crown crown block crown cell crown-cut crown ether

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。