Original high-quality and reasonable pneumatic air route design, coupons hot compressed air pressure control work, no external power supply, k work safety is stable and reliable.
采用优质气动原件及合理的气路设计，券压缩空气控制压烫工作，无需外接电源，工作稳定可靠安全。
The special feature of the demonstrator is that the sensing elements have no need of an external power supply.
这种演示装置的特点在于，其传感器件不需要外部电源。
The special feature of the demonstrator is that the sensing elements have no need of an external power supply.
这种演示装置的特点在于，其传感器件不需要外部电源。
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