Prewetting of coal seams by water infusion is an essential measure for dust control at working faces.
煤层注水预湿是采煤工作面防尘的治本措施，添加湿润剂是改善煤层注水效果的重要途径。
The time-dependent height,wetting radius and contact angle of the droplet were measured.
实验测量了液滴高度、湿润半径和接触角随时间的动态演化。
An experimental system,composed of a liquid tank,a solid thin plate,a step-motor,a CCD camera connected with stereoscopic microscope,a high-speed image acquisition card,and a computer,was utilized to investigate dynamic wetting behavior of silicone oil on glass,aluminum and stainless steel surfaces and understand the effect of the solid surface properties on the dynamic wetting behavior.
利用精密步进电机、高速CCD图像采集系统、立体显微镜,采用液槽法测试硅酮油在玻璃、铝、不锈钢表面上的动态湿润行为。