ambient vibration ; microtremer 振幅很小（只有几微米）的环境地面运动。系由天然的和（或）人为的原因所造成，例如风、海浪、交通干扰或机械振动等。常用于确定场地和工程结构动态特性。
... engine vibration 发动机振动 environmental vibration 环境振动 excessive vibration 剧烈振动 ...
基于10个网页-相关网页
环境振动标准 environmental vibration standard
铁路环境振动测量 Measurement of railway environmenta vibration
环境振动试验 ambient vibration testing
铁路环境振动 railway environment vibration
振动环境试验 vibration environment test ; vibration environment experiment
振动环境 Vibration environment
环境随机振动激励法 environment random vibration stimulating method
环境随机振动试验 ambient random vibration test
Firstly, the environmental vibration is random.
首先在于环境振动的随机性。
参考来源 - 高科技厂房微振响应分析Thenaturalvibrationfrequencyidentifiedfromtheearthquake response records by HHT Frequency Response Function is less than the result identified from the ambient vibration test .
发现结构地震反应记录HHT频响函数识别的自振频率比环境振动测试结果要小。
参考来源 - 基于希尔伯特—黄变换（HHT）的地震作用结构损伤识别·2,447,543篇论文数据，部分数据来源于NoteExpress
该方法可用于轨道系统引起的环境振动评价。
This method can be used to evaluate the environmental vibration induced by rail system.
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.
仪表具有抗介质脉动和冲击载荷，耐环境振动等优异特性。
Instruments of anti-media and the impact of fluctuating load, vibration-resistant environment, such as outstanding characteristics.
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