The elastic wave parameters characteristics of Datong jurassic coal rock bed are analyzed. It will guide the channel wave seismic exploration in future.
对大同侏罗纪煤田的煤岩层弹性波特征参数进行分析，以便指导今后槽波地震探测工作。
2
An elastic tubular channel, such as an artery, a vein, or a capillary, through which the blood circulates.
一种有弹性的管道，例如动脉、血管或毛细管，血液通过它们进行循环。
3
Elastic not enclosed in a channel must have a soft-brushed surface if worn next to the skin.