The said connecting part connects with front side member and rear side member separately to make the composed box border sheet capable of folding in side direction.
该连接件又分别连接前侧杆和后侧杆，使得组成箱体边片能侧向折叠；
The data map is stored according to sheet or block in embedded GIS system, thus causing seam in the cutting-border for physical integrate area feature.
嵌入式GIS地图数据是分幅、分块记录和存储的，物理完整的面状地理实体在切割边界会产生缝隙。
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