hard-rock drilling 中文意思是什麼
hard-rock drilling
解釋
硬巖層鉆井-
Colloidal particles are formed in considerable amounts in hard-rock drilling and blasting operation.
在硬巖石鉆孔和爆破作業中,大量地生成膠體粒子。 -
Impregnated drillbits are suitable for drilling in the broken rock formation with f 8 - 12, and soft hard, hige dense, strong grinding skidding rock formation
孕鑲鉆頭適用於f 8 - 12級破碎巖層軟硬互層及堅硬緻密的強研磨性巖層打滑巖層的鉆進。 -
Skin impregnated drillbits are suitable for drilling in the medium - hard rock formation with f 6 - 10
表鑲鉆頭適用於f 6 - 10機中硬及堅硬巖層的鉆進
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