1. And how to enhance the classroom teaching effects by using video resource efficaciously is a great concern of all. �����Ч��������Ƶ��Դ��߿��ý�ѧЧ����Ϊ��ע�����⡣
2. The result of experiment shows that the arithmetic can raise the SNR and quickly segment the image and efficaciously detect the target. ʵ��֤���ü�������Ч���ͼ�������ȣ��Ӷ��ﵽ��Ч�ָ�Ϳ��ټ��СĿ���Ŀ�ġ�
3. This paper designed a new and practical inner pipe-through collecting tube which can transform the solar energy into the heat energy quickly and efficaciously. �����һ������ʵ�õ��ڹܹ�ͨʽ̫���ܼ��ȹܣ����Կ��١���Ч�ؽ�̫����ת��Ϊ���ܡ�