例句與造句

1. The active guidance system on SA-5 was similar to that of earlier flights.
2. This torpedo used one of the earliest active guidance systems and was introduced in 1949, but was classified as obsolete in the 1960s.
3. In military parlance, a rocket differs from a missile primarily by lacking an active guidance system; early missiles were known as " guided rockets " or " guided missiles ".
4. It's difficult to find active guidance system in a sentence. 用active guidance system造句挺難的