... Vacuum Sealed Package 真空密封包 In Sealed Package 在密封包装 PACKAGE NOT SEALED 包装未封口 ...
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DISCLAIMER: Product may contain manufacturer files pre-loaded in sealed package.
声明：产品制造商的文件中可能包含预装在密封包装。
As before, the laser package is hermetically sealed for reliable operation in adverse environments and the laser output is collimated using an internal lens system.
密封激光包在恶劣环境下可靠运行，激光输出采用内部透镜系统校准。
But while batteries store all the chemicals needed for the necessary chemical reactions in a sealed package, fuel cells use an external fuel source and air from the atmosphere.
电池是在密封容器存贮化学反应必需的化学品，但燃料电池却使用外部燃料和大气。
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