rock mass with sheet crack
corrugated sheet-iron (undulated sheet-iron)
nickel-plated steel sheet and nickel-plated punched steel sheet
sheet to sheet duplicator
single sheet apparatus for measuring specific total losses of magnetic sheet and strip
assemblage of source-rock reserve and cap-rock
flexible rock and special flexible rock
from thick rock salt to thin rock salt
hard rock interbedded with soft rock
metamorphic rock of the original rock
rock bench for rock-bolt crane beam
Rock Content in Coal Rock Mixture
rock damage rock breaking
rock suite and rock group
rock-bolt supporting for layer rock
The source rock-reservoir-cap rock associations
~(125)I seed carrier sheet
1 million Yongshujiao Sheet