空心玻璃微珠的滚动性能好，可提高机械钻速，从而显著提高钻井效率。
Hollow glass microspheres has a good rolling performance, and it can increase the drilling rate, and Significantly improve the drilling efficiency.
它使用缓冲技术，以取得更好的性能，并使滚动看上去更为流畅。
It USES buffering for better performance and also to make the scrolling smooth.
产生这种性能问题的原因是，统一odbc使用可滚动的键集驱动游标来发出SELECT语句。
The reason for this performance issue is that Unified ODBC USES scrollable dynamic cursors to issue SELECT statements.
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