复杂介质中地震波的传播多是通过求取单程或双程波动方程的数值解进行模拟的。
Propagation of seismic wave in complex medium is mostly simulated by numeric solution of oneway or two-way wave equation.
这段长30千米的路程只需8分钟就能完成，单程票价50元，双程为80元。
This 30km ride takes about eight minutes and 50 yuan one way, and 80 yuan for a round trip.
女士：你想要单程的还是双程的？
复杂介质中地震波的传播多是通过求取单程或双程波动方程的数值解进行模拟的。
The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.
实现了基于CCEPS多角度放大单程，双程以及四程放大光路，在小信号时得到十倍以上的放大输出；
Experiment one pass, two pass and four pass master oscillator-power amplifier, realizing angularly multiplexed amplifer based on CCEPS which produce a decuple output power in small signal;
实现了基于CCEPS多角度放大单程，双程以及四程放大光路，在小信号时得到十倍以上的放大输出；
Experiment one pass, two pass and four pass master oscillator-power amplifier, realizing angularly multiplexed amplifer based on CCEPS which produce a decuple output power in small signal;
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