系列化拉条镦头模设计。

Design of the Upsetting Die for a Series of Bracings.

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目的：显示多元线圈阵列在球形头模中产生的电磁场分布。

Objective: Distribution of magnetic and electric fields induced inside a spherical volume conductor by coil array of transcranial brain multichannel magnetic stimulation are shown.

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配有28颗直根牙齿，可以自由取下，可以更换，适用于头模、牙体制备训练及牙科教学。

Taproot with 28 teeth, and are free to remove, can be replaced for realistic manikin, tooth preparation training and dental teaching institutions.

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