period relations周期: period; cycle; circle; revol ...关系式: comparison expression; relat ...周期关系: period-luminosity relation周光关系 周期关系: period-luminosityrelation关系式: comparison expression; relation; relational expression; relationship下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:周期关系式，即可在微信中查询翻译
