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1·This situation ended until the pointsman came and gave directions.

这个情况一直到交通警察到来并做交通指挥才得以结束。

2·The purpose of article makes full use of the COM advanced characteristics and uses them successfully in Pointsman OA System.

旨在通过利用微软COM组件的先进特性，并将其成功地运用到交警警务OA系统中。