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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.……黄姑娘和郑家三少爷在外面说笑，又是‘哥哥又是‘妹妹的，各位姑娘听了都皱眉。微剧《深爱食堂》讲述发生在一家餐厅里的故事，由《不加盐的小黄鱼》、《回忆里的土豆丝饼》、《加红牛的红绕肉》、《肉蒸蛋》、《加牛奶的蛋炒饭》、《插蜡烛的肉蒸蛋》、《家香浓郁的黑芝麻糊》、《桃花碗里的的麻婆豆腐》、《冠军味道的片儿川》、《香味十足的臭豆腐》九个小故事组成。不同人物之间的情感纠葛，向人们展现了生活在现代都市中的年轻人积极、向上、立志奋斗的感人经历。我去骂他一顿，他就转过弯来了。根据新疆发生的一个贩毒大案为素材，结合新疆近年来公安机关破获的一系列贩毒案例制作而成，由萧云编剧，白林、刘凡、阿尔斯郎、帕丽扎提·艾尼、亚生、郭崇联、阿依吐纳依等演员主演 本剧是新疆第一部以新疆公安战线所发生的实际案件为题材的电视连续剧。兄妹相聚了，又都平安无事，虽然暂时还不能见光，身上还背负着冤屈，但也让他们感觉安心和踏实，分外珍惜。Event is a procedural database object called by MySQL at the corresponding time. An event can be called once or started periodically. It is managed by a specific thread, which is also called "event scheduler".