orbit point圆圈: circle; ring; round飞行: flight; flying; aviate; voya ...中心: centre; centrum; centrality; ...圆圈飞行中心点: orbit point大圆圈飞行: great-circle flight; parallel flight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:圆圈飞行中心，即可在微信中查询翻译
