采用开环系统和手动、自动模式切换装置，可以经济、有效、大量地加工带有窄缝的割缝筛管。
The slotted pipe with narrow slots can be mass worked economically and efficiently by means of open loop system and hand automatic model shifter.
本文详细介绍了一种具有防止乒乓效应的智能化呼吸机供气自动切换装置的性能特点、硬件电路工作原理及具体实施方法。
Describes the features, working principle and detailed methods of an anti-ping pong effect, intelligent and automatic switching device for compress air in respirators.
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