When surveyed by specific subjects, Donghua Testing stated that the company participated in the development of hybrid aero engines and provided hybrid aero engine measurement and control subsystems to control fuel supply during engine flight. Sensors and control systems are sold together, which is part of the company's customized measurement, control and analysis system business segment.
东华测试：公司有参与混动航空发动机的研制
Donghua Test: The company is involved in the development of hybrid aero engines
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