altitude correction of zenith difference天顶: zenith差: send on an errand; dispatch高度: altitude; height; elevation修正: revise; amend; correct; upda ...高度修正: adjustment for altitude; altitude correction; elevation correction; height adjustment; height correction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:天顶差高度修正，即可在微信中查询翻译
