型腔壁厚
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iso-wall thickness progressive cavity pump 等壁厚螺杆泵
cavity wall thickness
空腔壁厚度
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As the increase of the pressure difference, the contact pressure increases, the contact pressure of iso-wall thickness progressive cavity pump is larger than that of common one.
随着压差的增加接触压力相应增加，等壁厚螺杆泵比普通螺杆泵接触压力大；
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