按外形分为圆形、矩形、腰形、椭圆形等。多层网片有双层、三层，或按要求加工。

Double layer or three layer, Can be classified into round, square, kidney shape, oval and other special shapes according to the outside designs.

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减速器标签与电压标签按外形图所示位置粘贴，电压标签：ac220 ~ 240v。

Location of the speed reducer's and voltage's labels see motor's dimension drawing. The voltage in the label is AC220 ~ 240v.

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但是如果将它们按读音而不是外形将它们逐一分类时，最常用语的数量就减少到了50个，这些对于发信息来说已经足够了，并可以被分配在很少的按键上。

But by grouping them by sound rather than appearance, the number of characters can be reduced to about 50 of the most common, enough to write messages when mapped to a small number of keys.

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