double-track railway tunnel
double-track railway tunnel
双轨铁路隧道
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Research conclusions: With the trains being-speed up, the transient pressure of double-track tunnel in the existing railway can not reach the standard of comfort.
研究结论：提速后，我国既有线上一些双线隧道的瞬变压力不能满足旅客乘车的“舒适度”标准。
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