borer holes

释义

蛀孔；

Borer hole filling-kill injection syringe
On the influence of pinhole borer holes on the strength of poles
Notes on the sliping of a 1, 82m raise-borer hole into a 6, 096m ventilation shaft at Rustenburg Platinum Mines, Ltd. : 7F. ASSOC. M...
Studies of shot-hole borer of tea V-borer population
Shot -hole borer control
Control of the shot-hole borer /
The shot-hole borer problem
Shot-hole Borer Investigations.
The Tea Shot-hole Borer Investigation.
Shothole Borer