例句與造句

1. Since heat pipes were rediscovered by George Grover in 1963, extensive life tests have been conducted to determine compatible envelope / fluid pairs, some going on for decades.
2. Various new formations were tried by Tomahawk units in 1941 42, including : " fluid pairs " ( similar to the German " rotte " ); one or two " weavers " at the back of a squadron in formation, and whole squadrons bobbing and weaving in loose formations.
3. It's difficult to find fluid pair in a sentence. 用fluid pair造句挺難的