In this papercharacteristics of field pattern distribution by laser hardening and the important parameters are presented.
提出激光硬化时的激光强度分布特性和主要参数。
2
In this papercharacteristics of near source earthquakes are introduced and its influences on ductility of rc columns are investigated.
介绍了近源地震的特点，研究了RC柱在近源地震时的延性特性。
3
Traditional graphics standard is analyzed in the paper. Characteristics and developing guidelines of object oriented graphics core systems are discussed using object oriented concepts and motheds.