光纤已是长途干线的首选传输媒质。
Optic fiber is now the preferred transmission medium for long-haul trunks.
红外线作为室内通信无线传输媒质，具有低成本、低功耗等特点。
As one of the transmission media for short range indoor wireless data communications, Infrared (ir) medium has the features of low cost and low power consumption.
为了改善由此造成的系统性能下降，系统传输媒质可以采用色散位移光纤。
To improve the consequent system performance degradation, system transmission medium DSF can be used.
现代语音编解码技术中，除了单纯的编码解码之外，针对传输媒质、环境等问题，又涌出了一系列与之相关的技术。
Except simple coding in modern speech coding technology, there is a serial of technology to solve transmitting medium and surrounding problems.
给出了光功率在光纤中的传输损耗及各种均匀媒质分界面上的反射损失。
It gives the transmission consumption of light power in light fiber and the consumption of reflection on interfaces of divisional homogeneous mediums have been investigated.
目的频率域上研究生命信号在分层媒质中的传输特性。
AIM To study the propagation characteristic of vital signals in layered media.
超声在介质中的传输是一个复杂的过程，它既被散射又被吸收，而生物媒质是由水、脂肪和蛋白质组成的物质，与均匀流体具有完全不同的特点。
Ultrasonic scattering and absorption is a complicated processing. Biologic media is composed of water, fat and protein, which is different from even liquid matter.
超声在介质中的传输是一个复杂的过程，它既被散射又被吸收，而生物媒质是由水、脂肪和蛋白质组成的物质，与均匀流体具有完全不同的特点。
Ultrasonic scattering and absorption is a complicated processing. Biologic media is composed of water, fat and protein, which is different from even liquid matter.
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