“掘進”造句
2024年06月18日 04:14:31
由于其作業(yè)的不連續(xù)性, 影響了其
掘進效率的發(fā)揮.
Due to its uncontinuity of operation, its tunneling efficiency is greatly influenced.
介紹了一種新型的
掘進巷道裝抖設備以及它的工作原理、使用效果.
This Paper introduces a new tunneling feeding installation, principle and using result.
掘進巷道是全面、準確了解礦井煤層地質條件的先導.
Roadway heading is the forerunner for clearly knowing coal bed geological conditions.