内窥镜——一种柔软的器具，包括光导纤维束和光源，内科医师用来检查食道，胃，和十二指肠。

ENDOSCOPE - a flexible instrument containing fiberoptic bundles and a light source used by physicians to examine the esophagus, stomach, and duodenum.

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方法对纤维内窥镜下活检的胃组织采用对TRAP方法加以改进的银染TRAP法，检测了端粒酶活性。

Methods An improved silver nitrate TRAP method was used for the detection of telomerase activity in tissues from gastric biopsy.

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