pneumatical system 气动系统
Pneumatical Musical Instruments 气动乐器
pneumatical pick 风镐
Pneumatical Lock 气动锁紧
pneumatical elements 气动元件
pneumatical transportation 气力输送
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The main structure of JM-203 nailing machine is stated briefly, the pneumatical system is stressed and the technology improvement is analyzed during the trial-manufacture.
简述了JM - 203钉角机的主要结构，重点介绍了其气动系统，并分析试制过程中的技术改进情况。
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