结果：结肠通过时间检查显示20例患者为出口梗阻型便秘，12例为慢传输型便秘。
Results: Colonic transit time shown in20patients was of outlet obstruction constipation, 12patients were of slow transit type.
结肠推进性收缩的幅度频率减少、结肠蠕动无力，肠传输时间增加，粪便无法正常推送至直肠；
The colon contraction frequency and amplitude with propelling movement decreases, the transit time prolonged, the feces cannot be pushed to the rectum;
结肠推进性收缩的幅度频率减少、结肠蠕动无力，肠传输时间增加，粪便无法正常推送至直肠；
The colon contraction frequency and amplitude with propelling movement decreases, the transit time prolonged, the feces cannot be pushed to the rectum;
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