圆形明亮式切割的主钻配衬铺镶钻石，灵感来自于花蕾简单而意味深远的魅力。
This round brilliant center stone complemented by pave-set diamonds was inspired by the simple beauty of a flower bud.
集中论述了在实际微孔钻削加工过程中主切削刃对微钻头折断和微孔加工精度的影响。
This article focused on drilling in the actual processing of microporous main cutting edge of micro-drill breaks and microporous processing accuracy.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established.
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