例句與造句

1. Then to 1943 he worked at the Ioffe Institute with Anatoly Petrovich Alexandrov . In that period ( by November 1941 ) they devised a method of demagnetizing ships to protect them from German mines, which was in active use through the end of World War II and afterwards.
2. It's difficult to find demagnetizing ship in a sentence. 用demagnetizing ship造句挺難的