d latdifference inlatitudedifference of latitudetangent latitude error纬度: latitude差: send on an errand; dispatch北向纬度差: northing渐长纬度差: difference of meridional part南向纬度差: southing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:纬度差,即可在微信中查询翻译