primary magnet pole 主要磁极
For instance, it is universally agreed that the striate area of the occipital pole is the area of primary visual projection.
例如，一般都同意枕叶的条纹区域掌管主要的视觉投射。
FFU have primary and hepa two pole filter net.
ffu设有初、高效两极过滤网。
Specification: flat head cold-flow model, countersunk head cold-flow model, primary drawing mould, pole-shorten model, etc.
规格：平头冷墩模、沉头冷墩模、一序冲顶模、缩杆模等。
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