1.The air-bubble formation in the hard anodic oxidation of aluminum alloy (ZL109) pistol was studied using a pulse/galvanostat electric power supply device.

 
  • 宋代官窑瓷当用10倍放大镜观看汽泡,气泡对光线形成一定的散射,观看时有一种很强的玉质感。
今日热词
目录 附录 查词历史