2014年(381)
分类: 信息化
2014-06-10 18:26:00
A filter with , the permeability of overlap of two rectangles, bottom edge, edge on both sides and the top flange, described the bottom edge and two side edge respectively joint between each other between each other and closed, and described the top flange formed between each other at the top of the opening of the , described using two pieces of one side of the piece and it is one piece of the top edge of the nearby part stated and described a square piece of outside of the joint, forming towards described described one slice of the bottom edge of pocket opening downward direction.
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