1. The early Indiana person deer foot pointed cone's discovery had proven here once had the rich life, some exterminated, but is left over evolved present. ����ӡ�ڰ�����¹�ż��ķ���֤�������������зḻ������������һЩ����ˣ���ʣ�µ��ݻ��������ڡ�
2. It analyzes the cause of the piping thinned, introduced the measuring method to the piping thick and pointed out some problems to should in the measurement. �����ܵ��ں������ԭ����ϸ������ȷ�����ܵ��ں�ķ���������ָ���˹ܵ��ں����ʱӦע������⡣
3. The author pointed out that tubing anchor can not only control the tubing flex , but also improves force status , prolong the using life of tubing strings . ָ����ê��������ê���⣩�������Կ��ƹ��������������ҿ��Ը��ƹ���������״�����ӳ��ܵ�ʹ��������
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adj.
1. having a point
2. direct and obvious in meaning or reference; often unpleasant