The quick trunk injector comprises a reservoir pressure-meter, a spring balance, a transfusion pipe, a liquidvalve, an air pinhead and a switch.
快速树干注射器主要由贮液瓶、压力表、弹簧秤、输液管、注药口、气门嘴、注射针头、开关等几部分组成。
2
A leakage detecting device for liquidvalve was developed based on the theory of acoustic emission, and corresponding experimental system was designed to test its performance.