أرسل هذا في رسالة قصيرة: Localized lubrication of micromachines: A feasibility study on Si in reciprocating sliding with PFPE as the lubricant

  ______   _    _      _____    ______   __   __  
 /_   _// | || | ||   / ___//  /_   _//  \ \\/ // 
   | ||   | || | ||   \___ \\   -| ||-    \   //  
  _| ||   | \\_/ ||   /    //   _| ||_    / . \\  
 /__//     \____//   /____//   /_____//  /_//\_\\ 
 `--`       `---`   `-----`    `-----`   `-`  --`