the area ratio of the mas

a finger on the wall

adhering to the wall

Calculation of the Ratio

chemical grouting by breaking the wall

Construct the area

crushing in the wall rock

DDZ type ventilating fan fixed in the wall

effect of variable porosity near the wall

evaluation of the area position

fire prevention of the wall

Friction with the wall of duct

grouting on the wall back

Intraocular foreign body in the wall of the eye ball

maintaining the wall of bored holes with slurry

match with the ratio

minimum thickness of the wall body

mud cake on the wall of borehole

outside heat preservation outside the wall

outside the window