In addition, the use of U3751 battery in operation, only five minutes of preheating, suitable for outdoor and field test.
㩿另外，U 3751在操作时使用电池，只需五分钟预热，适用于户外和场地测试。
It is especially suitable for plugging high permeable, macro pore path formations and convenient for field operation with a small amount of volume and a low cost, obtaining a good effect.
尤其适应于封堵高渗透、大孔道地层， 且现场施工简便、施工用量少、成本低， 取得了很好的应用效果。
The invention can meet the calibration requirement of an ultrasonic measurement system, has small volume and simple operation and is suitable for being used in field test.
本发明不仅能够满足对超声波测量系统进行校准的需要，而且体积小、操作简单，适合现场试验使用。
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