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main haulage tunnel
meaning in English
主要运输平硐
Related Words
main haulage
haulage equipment
haulage gantry
haulage operator
haulage chain
haulage device
haulage vehicle
mainline haulage
mechanized haulage
belt haulage
main haulage series
main haulage track
main haulageway
main hauling line
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