developed surface造句怎么写

In the 15 years before China and the United States established diplomatic relations, on June 29, 1964, China successfully launched the first domestically developed surface-to-surface missile, and on October 16 the same year, China successfully exploded its first atom bomb.

Surfaces used widely in engineering, such as gyration surface, developed surface, the normal circular-arc surface and so on, are the typical Bertrand surface.