Delivery of a purchase order acknowledgment by Seller, commencement of any work by Seller or Seller's shipment of the Products will manifest Seller's assent to the Agreement.
卖方认可采购订单的交付，卖方开始工作或者卖方装运货物将视为卖方已同意协议。
TCP may generate an immediate acknowledgment (a duplicate ack) when an out - of-order segment is received.
当收到一个出问题的分片，Tcp立即产生一个应答。
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