Informix will not allow the creation or extension of a chunk to overlap an existing chunk in the same instance, whether the operation is performed manually or automatically.
Informix将不允许创建或扩展块来重叠同一实例中的现有块，不管是手动还是自动执行操作。
The overlap of 4 hours now between HKSE's operation and A-share trading will be prolonged to 5 hours on March 7, 2011.
港交所将延长与A股重叠交易时间3月7日，港交所将延长与A股重叠交易时间，交易时段由现在的4小时延长至5小时。
Overlap analysis is a widely used spatial operation for the needs of spatial analysis in GIS.
叠置分析是GIS进行空间分析时常用的一种空间操作。
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