In general, the transport defines a message structure comprising a header and a body.
总体来说，传输定义了一个包含头部和体部的消息结构。
Mail fist send to plant header General manager but No response. then to Perlos CEO and board chairman of Liteon Group feedback with a letter from CEO.
邮件拳头标题发送到工厂总经理，但没有回应。然后贝尔·罗斯公司首席执行官和董事长建兴组反馈，以信ceo。
While ruffled tapered header general welding in two different nominal diameter of cylinder, make two nominal diameter of different cylinder is an organic whole repeatedly!
而折边锥形封头一般焊接于两公称直径不同的筒体中间，使两公称直径不同的筒体连为一体！
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