Meinten Sie:
person:("feng, chen")
•
person:("feng, zheng")
•
person:("feng, shen")
Analysis method of flight crew human factors in system safety assessment
Walking mechanism and walking method for seed fertilizer seeder
Template hoisting device for hydraulic engineering construction
Power battery reciprocating flow cooling system with rotary valve and control method
High-integration and high-reliability pump valve assembly for thermal control of spacecraft
High-reliability long-life compensator for thermal control of spacecraft and preparation method