Objective To develop a kind of self lower body negative pressure device.

目的研制一种自行下体负压训练器.

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Paper separator and pressure device can be installed.

可配分纸压线装置.

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It is the discharging pressure device in pipe system of compressed, easy - exploding gas.

作为压缩 、 易爆气体管道系统的卸压装置.

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