混合痔；直肠黏膜内套叠；分段齿形结扎；悬吊。

Mixed hemorrhoids; Rectal internal mucous intussusception; Segmental dentate ligation; Suspension.

youdao

主要有齿轮、轴、泵体、泵盖、轴承套、轴端密封等组成。齿轮采用双圆弧正弦曲线齿形制造。

YCB arc gear pumps are mainly gear, KCG axis, the pump body, cover, the axial bearing, sealing etc. Using double circular-arc gear tooth sine curve.

youdao