这一修改是为解决床垫支撑硬件和相关结构风险的问题。

This change is needed to address mattress support hardware and related structural integrity hazards.

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雷声公司将提供系统工程、信息担保、海上C4I硬件和电子包，以及综合后勤支撑。

Raytheon will furnish systems engineering, information assurance, maritime C4I hardware and electronics packaging, and integrated logistics support.

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有充分的理由支撑，它(IBM PC)的ESC键释出的不是字符本身，而是一个“扫描指令”。随后这个指令被映射至硬件层面，就像编译器所做的。

For excellent and sufficient reasons, its keys emitted not the character itself but a "scan code", which was then remapped to the hardware level, just as a compiler would.

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