释义 |
powder B 基本例句 化B火药 The process of low temperature boro carbo nitriding by using ofpowder BC N RE was studied and compared with those of B C N. The results show that RE have a significant catalytic effect within proper limits.采用X射线衍射仪 ,恒电位仪 ,摩擦磨损试验机等设备 ,研究了低温硼碳氮稀土 共渗工艺及共渗层的组织性能 ,并与硼碳氮 共渗工艺及组织性能进行了比较。 |