spheren.范围；领域；球；球体；天体vt.形成球体；包围；围绕sphere of error metric误差判据球sphere-packing bound球包界sphere of jurisdiction[法] 管辖范围sphere-gap voltmeter[医] 火花间隙伏特计sphere interchange unit球的交换装置sphere of the inversion反演球sphere of jurisdictions辖区规模sphere photonic crystal光子晶体滤波器sphere fitting algorithm曲面拟合法sphere measurement model球面量测模型