Russian ⇄ English

подготовительная выработка stresses
construct.	preparatory excavation
geol.	entry; developing butt; development workings; narrow working; temporary roadway
mining.	advance workings
mining., Makarov.	opening
tech.	developing entry; development drift; development gallery; development heading; development opening; development working
подготовительные выработки
goldmin.	mine openings (Leonid Dzhepko)
goldmin., geol.	development workings (Jewelia)
mining.	entries; preliminary development; whole workings; winnings; development headings (lxu5)

подготовительная выработка: 38 phrases in 7 subjects

Coal	1
General	2
Geology	3
Gold mining	3
Makarov	1
Mining	23
Technology	5