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... has a lively personality, questioned Leng Han, who was in charge of statistics: "Sister, the teacher's aero-engine has been successfully developed, and the test scene is so shocking."
Leng Han spoke a little excitedly: "Got it, I went to see it yesterday, and the scene was really shocking. It's not comparable to the small engine we made. I heard that there will be a life test. The oil burns, and it costs thousands of dollars an hour." Don’t you feel distressed if you have to burn for tho ...
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