It is well known that the optical fiber has the maximum bandwidth in all transmitting medium used in the network communications.

在网络通信的信息传递材料中，光纤被公认为是现今通信带宽最大的传输介质。

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Characteristics of ultrasound, such as strong directional transmission, high vibration intensity in the transmitting medium, and cavitation in liquid medium were introduced.

介绍了超声波具传播方向性强、介质振动强度大、在液体中可产生空化现象等特点。

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Characteristics of ultrasound, such as strong directional transmission, high vibration intensity in the transmitting medium, and cavitation in liquid medium were introduced.

介绍了超声波具传播方向性强、介质振动强度大、在液体中可产生空化现象等特点。

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