精密控制涂封深度是工艺关键。以新宝华公司新型封端机为例，介绍设备的结构和工作原理。
With the new end-coating machines made by new Baohu Co. as example, the structure and principle of end-coating machines are presented.
你好，我地名字叫华清，是壹位来自遥远的中国的尿迷，这是俺给你写的第一封信。
Hello, my name is Huaqing, is a far from the Chinese fans, which I write to you the first letter.
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