Abstract： This paper describes the designing and manufacturing of the knife holder of model 2040 multi-purpose microtome.

摘 要： 本文介绍2040型多用机刀架槽体的改造与加工。

The small intestine was gained to make microtome section and mucous membrane of small intestine morphology, trophonema altitude, thickness and crypt shade were observed under light microscope.

光镜观察黏膜形态学变化及绒毛高度、厚度和隐窝深浅等。