Propagation logs rely on measuring the difference in properties of a wave at two receivers.

传播测井依赖于两个接收器测量的波的差异。

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Quenching crack propagation characteristics of the organizations on both sides without decarburization phenomenon significant difference between crack and materials and forging cracks.

淬火裂纹的组织特征是裂纹两侧无脱碳现象，明显区别与锻造裂纹和材料裂纹。

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The wave propagation characteristics of the splitter are numerically simulated by the finite difference beam propagation method and experimentally investigated.

首先用有限差分光束传播法模拟了器件的光波传播特性，然后进行了初步的实验验证。

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In response to one question, it was made clear that the huge difference in propagation in the different spectrum bands would require additional antennas but that is not a big part of the installation cost anyway.

FORBES: T-Mobile-Sprint Merger Would Need Clearwire Spectrum