主斜井 meaning in English

main inclined shaft
main slope, main slant

Reform on the skip of main inclined well in dahe coal mine
大河矿主斜井箕斗更新改造
Scheme study of belt conveyer for inclined shaft hoisting
主斜井提升带式输送机方案的确定
Design and optimization of belt conveyor for inclined shaft in coal mine
煤矿主斜井带式输送机优化设计
Alternative comparison of the design of the main inclined shaft of meihuajing mine
梅花井煤矿主斜井布置方式方案比较
Transformation of combining machine and track into one in main inclined shaft of shigejie mine
石圪节煤矿主斜井机轨合一改造

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