桥梁环境振动试验具有简单方便和花费少等优点。
Bridge ambient vibration test has an advantage of being simple, fast and cheap.
结果表明，论文提出的从随机数据的平稳性和信噪比两个方面去评价桥梁环境振动响应信号质量是可行的，可以较好地评价实桥信号的质量。
The experimental results show that from stationary and SNR of two aspects on random data to evaluate the measured signal quality is feasible, can evaluate the real bridge signal quality preferably.
环境摄影很重要，因为它为我们现代的、不自然的、机械的习俗及自然内外需要之间的桥梁提供了救生索。
Environmental photography matters, because it offers the lifeline of a bridge between our modern, denaturalised, mechanistic mores and the imperative of nature within and without.
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