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。
The quick trunk injector comprises a reservoir pressure-meter, a spring balance, a transfusion pipe, a liquid valve, an air pinhead and a switch.
使用时，其一端直接接注射器，另一端直接接注射针头。
When using, one end is directly connected with an injector and the other end is directly connected with a syringe needle.
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