1. Regulation on genetically modified food and feed. ��ת����ʳƷ�����Ϲ�����������
2. The British Army modified the basic M4 chassis with multiple weapons configurations and equipment. Ӣ��½���Զ����������ṹ����������������M4���̡�
3. An anticorrosion method of using modified water glass concrete lining of furan resin for saturators is introduced. ������һ�ֶԱ������������ˮ��������������ķ���ʴ������