zenith distance measurement天顶: zenith距: distance量测: measuration天顶距: co-altitude; zenith angle; zenith distance【天文学】天顶距。: zenith distance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:天顶距量测，即可在微信中查询翻译
