convey tunnel 中文意思是什麼
convey tunnel
解釋
輸水隧洞-
Using a vortex - flow drop shaft to convey water from a high level to a diversion runnel under the condition of high water - head and large discharge is a new kind of technology in the scheme of reusing a diversion tunnel as a discharge tunnel
近年來,為解決高水頭、大流量導流洞改建泄洪洞的技術難題,旋流式豎井泄洪洞逐漸成為研究熱點之一。但迄今為止,該技術尚未得到推廣應用,其主要原因在於人們對豎井螺旋水流運動特徵缺乏足夠的了解和深入的研究。 -
Roadheader is a part profile tunnel boring machine which can excavate, convey rock blocks and walk by itself. it is very suitable to excavate soft - rock tunnel
臂式掘進機是一種集開挖、裝碴和自動行走於一體的部分斷面隧道掘進機,它非常適用於軟巖隧道的掘進。
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