The research results show that to ensure the stability of the tunnel, the construction scheme of initial lining+pipe shed+advanced grouting anchor rod should be adopted. The research results have guiding significance for the long-term ... F Zhang,A Jiang,X Guo,... - Hindawi Limited 被引量...
aI've been looking for someone to shed some light,Not somebody just to get me through the night 我正在寻找某人发出一些光,不是某人通过夜得到我[translate] ai can not understand what is mean? 我不可能了解什么是卑鄙的?[translate] a你都没收到吗 You all have not received[translate] ...
a lot of works has been done, both by raw material and refractory producers, in order to obtain pitch bonded products which can meet the parameters estabilished by the 2001/59/CE directive particularly for IPA content and, more specifically for benzo a-pirene maximum value ( 50 ppm/kg )....
Finally, use a press to press the test piece into the steel mold and let it sit for 12 h to complete the sealing. The operation process is shown in Figure 6a–c. The practical results show that this sealing method is not only easy to operate but also offers good sealing performance, ...