发布时间:2025-02-08 19:28:47
非屏蔽双绞线(UTP)的线缆无金属屏蔽材料,只有一层绝缘胶皮包裹。
屏蔽双绞线(STP)的外面由一层金属屏蔽材料包裹,以减小辐射,防止信息被窃听。
初学者,想在自己的卧室里画这张,求大神帮忙说一下每个细节的比例,谢谢,
2025-02-08 19:28:47 2025-02-08 19:28:47 2025-02-08 19:28:47我的吊竹梅很多叶子都发黄枯萎了天天浇水还是一样请高人指点谢谢
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