某同学用半圆柱形玻璃砖测定玻璃的折射率 他的实验操作步骤如下 A用刻度尺量出半圆形玻璃砖的直径d 算出半径r=d2然后确定圆心的 Template




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tomski某同学用半圆柱形玻璃砖测定玻璃的折射率 他的实验操作步骤如下 a用刻度尺量出半圆形玻璃砖的直径d coloring