In this laser the dischargetube with an inside diameter of 8mm and discharge length of 300mm is made of water-cooled segmented aluminium disks.
该激光器以水冷分段铝片组成放电管，内径8毫米，有效放电长度300毫米。
2
For small gush of water or water leaked from crack on the surface to be shotcreted rock face grouting or tube piloted discharge should be applied before shotcreting.
受喷面的小股水或裂隙渗漏水宜采用岩面注浆或导管引排后再喷混凝土。
3
The water-plugging device of large diameter tube used for water-finding comprises a water-plugging gas bag arranged circulating the frame, an inlet pipe or a discharge pipe is arranged in the frame.