词语大全 pack gravel中文翻譯

Posted 2022-08-13 粘土

篇首语：热水治不了百病，情话过不了一生。本文由小常识网(cha138.com)小编为大家整理，主要介绍了词语大全 pack gravel中文翻譯相关的知识，希望对你有一定的参考价值。

词语大全 pack gravel中文翻譯

Designning well tube and drill - hole diameter in order to increase thickness of both annular packing gravel and water - resisting clay , nylon packing around well tube filters , designing filter layer on the boundary beeen packing gravel and water - resisting clay and ramming the gravel by working the piston into the well after gravel packing pletion and the filpng clay for salt - water resisting etc . we succeeded in constructing 3 drinking - water wells in minqin county , proved the affectivity and feasibipty of using it and giving a certain technical demonstration of construction of drinking - water well in the same similar to this area
通過孔徑與管徑的調配設計，增大環狀粒料層和止水粘土層的厚度；濾水管外包尼龍紗網；粒料與止水粘土接觸界面上設計反濾層；填粒后先行拉活塞利用水力夯實粒料層，再投粘土球止掉上部咸水等措施，在民勤縣三口人飲水井施工中取得顯著效果，證明了該套成井工藝的有效性和可行性，有望為同類地區人飲水井施工提供技術示范作用。