A new type shaped tool is introduced which machines bond of copper, and machining problem about high precision and difference grinding characteristic are resolved.
介绍了加工铜键的一种新型成形刀具，解决了精度要求高耐磨性差的加工难题。
2
Effective valences of copper in superconducting oxides were calculated from the concept of bond valence.
从键价的概念出发，对氧化物超导体中铜离子的有效电荷进行了计算。
3
The mounting structure is insulative, and preferably comprises a direct bond to copper board.