double shielding

例句：

1. 1. The new security system uses double shielding to prevent unauthorized access.
   新的安全系统使用双重屏蔽来防止未经授权的访问。
2. 2. The company has implemented a double shielding policy to protect its intellectual property.
   该公司实施了双重保护政策来保护其知识产权。
3. 3. The double shielding technology is designed to provide additional security for sensitive data.
   这种双重屏蔽技术旨在为敏感数据提供额外的安全保障。