A Helmholtz coil is installed on the base sliding block through the coil fixed plate and can slide freely on the base guide rail.
亥姆霍兹线圈通过线圈固定板安装在底座滑块上，可以自由的在底座导轨上滑动。
A Helmholtz coil is installed on the base sliding block through the coil fixed plate and can slide freely on the base guide rail.
亥姆霍兹线圈通过线圈固定板安装在底座滑块上，可以自由的在底座导轨上滑动。
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