而且，在某些情况下，媒体的使用者要求信息必须以特定形式传送，以便适应其特定的技术要求。
And, in some cases, members of the media demand that information be packaged to accommodate their particular technological preferences.
绝大多数无线通信系统都要求对相邻频段的用户产生最小的干扰，也就是必须在所规定的频段范围内传送信号。
Most of the wireless communication systems are required to achieve least adjacent channel emissions and high bandwidth efficiency, that is to say signals must be transmitted in a limited band.
对于DCS的系统网络来说，它必须满足实时性的要求，即在确定的时间限度内完成信息的传送。
In the DCS system, real time is needed, it means that the signals must be communicated in the limited time.
因此，必须要求突发包和控制分组在传送过程中保持两者之间合理的时序关系。
So it requires there is a reasonable relationship of time or-der between a burst and its control packet during cross the OBS network.
因此，必须要求突发包和控制分组在传送过程中保持两者之间合理的时序关系。
So it requires there is a reasonable relationship of time or-der between a burst and its control packet during cross the OBS network.
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