| 1. | Many arms originally are high precision products , if we want promote its performance , might further more , we must enhance the dependability and precision of the system , it brings out higher requirements of the designing , machining , specially assembling , all of these needs dimensional chain calculation 许多武器装备本来就是高精尖产品,如果要进一步提升其性能、威力就必然要提高系统的精确度和可靠性,这些对设计和加工特别是装配都提出了更高的要求。 |