振动架下部安装有一个应急手动装置，使用手动装置可推动振动架，其手柄在料仓的外面。
An emergency hand-drive is arranged on the lower part of the vibrating grid, the vibrating grid can be pushed by a hand-operating device whose handle is arranged outside the bin.
波音表示，地面振动测试已经于上周在第二架测试飞机- ZA002上完成。
Boeing also confirms that ground vibration testing were concluded last week on the second test aircraft, ZA002.
因此，研究导管架平台的结构振动控制方法具有重要意义。
Thus, it is very important to investigate the methods of structural vibration control for jacket platforms.
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