它在网络协议中是最低级的层次成分，而TCP/IP协议是与硬件无关的。
This is the lowest component layer of the Internet protocols, as TCP/IP is designed to be hardware independent.
许多产品由不同类别的产品构成，服务、软件、硬件或流程性材料的区分取决于其主导成分。
Many products comprise elements belonging to different generic product categories. Whether the product is then called service, software, hardware or processed material depends on the dominant element.
论文对星载合成孔径雷达数据形成分机地面测试仪的硬件、软件设计及功能等方面进行了详细地研究。
The thesis presents the hardware design, software design and functions of the ground testing apparatus of space-borne SAR data-forming equipment in detail.
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