N → a variant spelling of weal
会不会是风疹块。
Introducing the structure, use principle, survey range and use method, to assure effectively the processing precision of gear wheal shaft.
介绍了该量具的结构、使用原理、测量范围和使用方法，有效地保证了齿轮轴的加工精度。
10 healthy volunteers were chosen for histamine prick test and observed the inhibitory action of mizolastine on the histamine induced wheal.
选择10名健康志愿者作组胺点刺试验，观察咪唑斯汀对组胺诱导风团的抑制作用。
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