用“bore hole”造句大全，bore hole造句

Installing bolts allowed to use gas cutting bore hole and never more than two gaskets pad not sexual bolts, exposed screw bolt length of not less than2-3 deduction.

Gas drainage in seam with large auto variable diameter bore holes

Constructional technique and quality assurance of big bore hole digging and pouring with expansion pile head

The engineering practice and the numerical simulation have been conducted on the millisecond blasting for ditching deep bore hole.

This tech has feature of measuring full data, saving operation time and losing cost which avoids bore hole disturbance and killing fluid influence.

The invention of pneumatic drill. This device compressed air to bore holes in the rock.

Completed pile working method of bore hole filling pile in the rock area with under-earth mined out layer

This paper introduces a technique of erecting framework and rig at the upper part of the caisson, making underwater boring and oriented explosion by layers within the bore hole.

The deviational survey unit measures the parameters of the apex angle and the azimuthal angle of the bore hole;

large beetle whose larvae bore holes in pine trees.

I'm on duty as from the Spring Day.

Stamp-tax, press the flower, engraving and bore hole the series ceiling.

Pressure releasing and gas drainage with long bore hole in roof overburden of fully mechanized caving face