4. Fluid sprinkling, spraying, and diffusing
  5. With cutoff or flow varying means operated by means...

Zhengyu Zhang

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Automatic semi-conductor condensate flower-watering device

Fluid sprinkling – spraying – and diffusing – With cutoff or flow varying means operated by means...
Reexamination Certificate

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Processing structured data

Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate

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Processing structured data

Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate

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