球心

• centre of sphere
• center of a sphere
• centre of a sphere

参考释义

球心 [qiú xīn]

• -
• 短语
  球心阀 globe valve
  球心角体 spherical sector
  球心投影 gnomonic projection
  球心投影海图 gnomonic chart; {图} great-circle chart
  球心轴承 spherical centre bearing