one-piece valve body是什么意思

用法例句

The piezoelectric multi-vibrator mode was adopted to enhance the maximum delivery flow rate of the pump,and the integral opening valves were employed to improve the unidirectivity of the flow.

提出一种新型精密药物输送泵,采用多压电振子的方式以提高泵的最大输出流量;采用整体开启阀,提高泵的单向截止性;将柔性药囊储药器集成于泵的入口通道,并置于带有两个环形电极的壳体中,实现了结构的轻小化。