用“longeron”造句大全，longeron造句
Technique Research on welding "H" type longeron;
The test results from the standard circles with different radii and the industrious application of the stiffening plate of Santana's front longeron were presented.
longeron for railway or tramway locomotives or rolling-stock
One design trait shared by all Aeronca designs, except the Tandem Trainer and military L-3's, was a three longeron fuselage.
