例句與造句

1. Pioneer work on composite laminates thin walled beams was done by Librescu.
2. Thin walled beams are particularly useful when the material is a composite laminate.
3. Thin walled beams exist because their bending stiffness per unit cross sectional area is much higher than that for solid cross sections such a rod or bar.
4. The cross section of " thin walled beams " is made up from thin panels connected among themselves to create closed or open cross sections of a beam ( structure ).
5. It's difficult to find thin walled beam in a sentence. 用thin walled beam造句挺難的