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person:("wang qingchun")
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person:("wang yingchun")
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person:("yang qingchun")
Large-loading multi-point coordinated undercarriage fixed connection structure
Folding mechanism of wings of an unmanned aerial vehicle
Composite material beam structure with appearance penetrating aircraft body
Light heat-proof force-bearing stealth integrated structure
Field damage assessment method for structure static test and thermal strength test
Height-adjustable honeycomb reinforcing bush with matched internal thread and external thread
Adjustable rocket boosting structure and method suitable for unmanned aerial vehicle
Overwater detachable floating type mobile operation platform