As a new wireless communication protocol, bluetooth has a strong function in data and sound transportation within a short distance.
蓝牙是一种新型的短距离无线通信协议，它可以实现小范围的数据、语音的无线连接。
Because it plays such a central role in the communication between the upper and lower layers of the Bluetooth protocol stack, the L2CAP layer is a required part of every Bluetooth system.
因为它在蓝牙协议栈的高层和低层通信中起着重要的作用，L2 CAP是每一个蓝牙系统必须的部分。
Bluetooth is a kind of low cost and low power wireless communication technology which is mainly applied in personal area net and consists of baseband chip and protocol stack.
蓝牙技术是一种用于个人区域网络的低成本、低功率的无线通信技术，主要包括基带芯片和协议栈两个部分。
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