The utility model aims to overcome the shortcoming above and provides the acquisition device with simple structure, low cost, low wear and low power consumption.
本实用新型的目的在于克服上述不足，提供一种结构简单、造价低、磨损小、 能耗低。
The utility model aims to overcome the shortcoming above and provides the acquisition device with simple structure, low cost, low wear and low power consumption.
本实用新型的目的在于克服上述不足，提供一种结构简单、造价低、磨损小、 能耗低。
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