1. Device used to crush or pulverise plastic or solid coating to powder form. ѹ�顢��ĥ���ϻ����Ϳ�ϳɷ�ĩ��ʽ���豸��
2. we pulverise these to make it powder-like and we mix it with cement and sand and put it in a mould and turn it into concrete products. ���ǰ���Щѹ��ϸ�ۣ�Ȼ������ˮ�༰ɳ�֮���������һ��ģ������ɻ������ƵIJ�Ʒ��
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v.
1. destroy completely
2. become powder or dust
3. make into a powder by breaking up or cause to become dust