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The outer surface is plated with copper, and the raw material of the core wire is mainly aluminum. The outer surface is scraped and the aluminum core is silvery white. The quotation per unit of aluminum is about 1/4 of that of copper, and the same volume of aluminum is only 1/3 of that of copper, so the quotation per unit of copper clad aluminum is much cheaper than that of oxygen-free copper. Copper-clad aluminum has poor oxidation resistance, faster oxidation speed in humid environment, and poor tortuosity resistance of aluminum raw materials. It is not suitable for laying in the wall, and is only suitable for customers who do not have high demand for network stability or may temporarily establish a network.Chris Keyser执笔﹑Marc Webb执导的Netflix新剧集定命为《新社会 The Society》，这部剧被形容为《迷失 Lost》与《苍蝇王 Lord of the Flies》的混合体，讲述一群少年自一次短途旅行后，回到城镇时发现其他人都失踪了，而且主角们还变得无法离开此地。2. Different materials and processes:《黑人小姐速写喜剧》于8月2日开播，由该剧主创兼制片人罗宾·西德、阿什利·妮可·布莱克、加布里埃尔·丹尼斯和昆塔·布朗森等黑人女性主演。《不安感》中的伊萨·雷是EP，偶尔客串。山阴绝对是打理的井井有条。　学生时代的雄二（千叶雄大饰）不太显眼，进入社会后创业成功，一下子变得受欢迎。虽然是帅哥，却不擅长处理女性关系。脚踏两只船的雄二往返于不同的电脑之间，为想办法蒙混过关而非常苦恼，然而到了最后3分钟却有惊天大逆转雄二的两位恋人OL彩、女大学生Maya分别由佐津川爱美和奈绪饰演。Deep replication: After an object is replicated, both the basic data type and the reference type are recreated. In short, the deep copy has been completely and completely copied, while the shallow copy is not completely copied.