cast tube造句
- The cast tube material is then reheated and blown into a large bubble using air pressure and temperature.
- The first firearms were made at a time where metallurgy was not advanced enough to cast tubes able to withstand the explosive forces of early cannon, so the pipe ( often actually built from staves of metal ) needed to be braced periodically along its length, producing an appearance somewhat reminiscent of a storage barrel.
- It's difficult to see cast tube in a sentence. 用cast tube造句挺难的