This paper briefly introduces structure, principle, application and feature of a new element named travel control single direction valve.
介绍一种新型气液元件行程控制单向阀的结构、原理和特点，以及在组合机床动力滑台液压系统中的应用。
The present invention relates to a single direction valve used in the micro invasive surgical puncture device of the laparoscopy and the thoracoscopy.
本发明涉及在腹腔镜、胸腔镜等微创外科手术穿刺器中使用的单向阀。
Installing single direction valve on exiting windpipe and reforming its structure construction proceeds to reduce noise and increment life of air-compressors.
出气管道上安装逆止阀，并对其结构进行改造以减小噪音、增加寿命。
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