穴内壁粗さの英語

低誘電率・低誘電正接でありドリルによる穴あけ加工を施すとき穴壁粗さが小さく、ドリル刃の磨耗量を小さくでき、穴内ひげ、切断時のバリが少なくできる積層板を提供する。例文帳に追加

To provide a laminate having a low dielectric constant and a low dielectric loss tangent, and when carrying out drilling by a drill capable of providing a hole wall with small roughness, capable of reducing abrasion loss of the drill blade, and further capable of reducing hair-shaped protrusions in the hole and burrs formed at the time of cutting. - 特許庁

ドリル加工後の穴内壁表面粗さの評価を、多くの手間を要す破壊検査を必要とせずに行うことができるプリント基板のドリル穴明け評価方法及びドリル穴明け装置を提供する。例文帳に追加

To provide a drill boring evaluation method and a drill boring device of a printed circuit board, capable of evaluating hole inner wall surface roughness after drill work without requiring a destructive inspection requiring much labor. - 特許庁