目的:探讨骨桥蛋白(osteopontin,OPN)与骨涎蛋白(bonesialoprotein,BSP)在非负荷期非埋植型种植体周围骨界面改建中的作用。方法:......

By using MTS815 rock mechanics test system,a series of acoustic emission(AE) location experiments were performed under u......

结合福建电网的实际情况，在黑启动恢复过程中对空载输电线路进行合闸操作时可能出现的过电压进行分析.分析结果表明，在黑启动恢复过......

The brush lock is due to assembly tightly during assembling three gripper so that it curls after some time in motor and ......