在开口钻内设有一通孔，通孔内设有与其相配合的定位克氏针。
The utility model is characterized in that an open drill is provided with a through hole in which an engaged positioning Kirschner pin is arranged.
当磁通线阵运动垂直于细丝方向时，其数据表明剪切模量C _(66)主要起针扎作用。
Where the flux line lattice moves perpendicular to the filament direction, the data show that the shear modulus, C66, governs the flux pin.
它由瓶塞穿孔器、加药三通、滴壶、控制夹、变径接头、头皮针和粗、细导管等构成。
The utility model is composed of a bottle stopper perforator, a triplet with plus drug, a drip kettle, a control clamp, a reducer union, scalp acupuncture, a thick and a fine conduit pipe.
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