Methods: 100 cases with constipation were studied in colonic transit test and defecography.

方法：对100例便秘患者作结肠运输试验及排粪造影。

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Materials and Methods: 100 cases with constipation were studied with colonic transit test and defecography.

材料与方法：对100例便秘患者作结肠运输试验及排粪造影。

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Objective to retrospectively analyze the role of colonic transit test in diagnosis and aetiology of constipation .

目的通过回顾性比较分析，探讨结肠运输试验检查在便秘病因学诊断所起的作用。

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The reason astronomers want to observe reflected sunlight during the transit of Venus is to test whether they can detect the faint imprint of passage of the sun's light through the atmosphere of Venus.

CNN: A transit of Venus, an age of wondrous science

Jay Pasachoff, an astronomer at Williams College, in Massachusetts, and a member of Dr Schneider's team, will be observing the transit of Venus from Thessaloniki, in Greece, to test this theory.

ECONOMIST: Transits of Venus

If the SenesTech taste test proves successful and birth-control bait is used throughout the transit system, the average life span of subway rats which now tops out at about one year, according to Mr. Lamb would probably rise slightly even as the total population declines.

WSJ: MTA Sets New Tactic in Rat War