标准摘要
[中文适用范围]： 适用于助听器的两针极化插头和三针插头。给出尺寸和公差以确保互换性。 [外文原描述]： Applies to two-pin polarized and three-pin plugs for hearing aids. Gives dimensions and tolerances to ensure interchangeability.
英文名称Recommendations for the dimensions of polarized plugs for hearing aids