The path or direction along which wave energy propagates through the Earth.

波(能量)在地球中传播的路径和方向。

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These heavier electrons cannot react quickly enough; hence the laser beam propagates through the plasma.

这些变“重”的电子不再能快速对激光做出反应，这样激光就得以在等离子体中传播了。

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The chromatic factor M2 is found invariable while the laser beam propagates through the dispersion-free ABCD system.

通过实验，我们发现在经过无色散的ABCD系统时彩色光束的M2因子是不变的。

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Once people lose faith in a system, a vicious cycle, like a bank run, propagates through, like a virus through arteries and veins, which will put it on its knees.

FORBES: Roubini Warns Of Euro Break Up As Greek Credit Rating Tumbles