It is difficult to deal with these problems only by depending on electric vibrator. So imported vibrator of high-frequency has been used in the foundation treatment of some large construction.
目前普遍使用的电动型振冲器难以解决这些问题，因此在一些大型工程的地基处理中已经应用进口高频液压振冲器。
In the construction of steel pipe scaffold on electric welding machine, vibrator and other electrical equipment should be placed in dry wood, operators shall wear insulating protective equipment.
在钢管脚手架上施工的电焊机、振捣器等用电设备应放置在枯燥的木板上，操作人员应穿戴绝缘的防护用品。
The electric-magnetic vibrator combined UWB antenna (EMV-UWB) that constructed of electric and magnetic vibrator, has the characters of small size and high radiated efficiency.
电-磁振子组合型UWB天线集电振子和磁振子于一身，具有尺寸小、辐射效率高的特点。
The electric-magnetic vibrator combined UWB antenna (EMV-UWB) that constructed of electric and magnetic vibrator, has the characters of small size and high radiated efficiency.
电-磁振子组合型UWB天线集电振子和磁振子于一身，具有尺寸小、辐射效率高的特点。
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