no-print key

例句：

1. 1. Theprinter requires a no-print key toprevent printing on paper that has already beenprinted.
   打印机需要一个无打印密钥，以防止在已经打印过的纸上再次打印。
2. 2.The security system uses a no-printkey to ensure only authorized personnel can accessthe building.
   安全系统使用一个无打印密钥，以确保只有授权人员才能进入大楼。
3. 3. The company's new product lineincludes a no-print key that allowsusers to easily share files without leaving anyprintouts behind.
   该公司的新产品线包括一个无打印密钥，允许用户轻松地分享文件，而不会留下任何打印品。