pipe in pipe造句

例句与造句

1. This requires pipe in pipe technology due to requirements for keeping the LNG cold.
2. I found a section on black iron pipe in pipe fitting under the section " Steel pipe . " The definition of black iron pipe ( in that article ) matched the definition of black lacquered steel ( in Domestic water system ) : best used in fire sprinkler systems; also used for gas and propane.
3. It's difficult to find pipe in pipe in a sentence. 用pipe in pipe造句挺难的