面心立方(FCC)及六方最密(HCP)结构金属中的差排结构将有较详细的描述.Dislocation structures in FCC and HCP metals are described in some detail.本文用赝势方法计算了铅的面心立方结构和金刚石结构的晶体总能,讨论了两种结构在高压下的稳定性.Using pseudopotential method, we calculated the crystal energy...
The rap oil - based lubricative additive is biodegradable and environment receivable lubricant.菜籽油基添加剂是一种可生物降解的环保的润滑剂.For dilating the bearing life, bearing should keep lubricative well.为延长轴承寿命, 轴承应保持良好的润滑状态....
Mainly small - scale production of buckwheat rice processing complete sets of equipment.主要生产小型荞麦米加工成套设备.Hele buckwheat noodles, with China's characteristics of the local flavor snack.荞面饸饹, 是我国具有地方特色的风味小吃.Buckwheat B...