行星观测上位置与计算上位置间的误差的英文

the error of a planet

• 行星:    planet
• 观测:    observe; observati ...
• 置:    place; put; lay
• 与:    take part in; part ...
• 计算:    count; compute; ca ...
• 间:    space in between; ...
• 的:    4次方是 The fourth po ...
• 误差:    error