So improvements of the obdurability of the tool tips and cutting edges are very important to better the cutting property of the end mill.
刀尖是刀具中最薄弱的环节，提高刀尖及切削刃的强韧性对改善刀具切削性能尤其重要。
The invention discloses high-obdurability highway concrete, which has the ingredients of cement, coarse aggregate, fine aggregate, water, modified steel fiber and rubber microparticle.
本发明公开了一种高强韧性的公路用混凝土，其配料为水泥、粗集料、细集料、水、改性钢纤维、橡胶微粒。
The invention discloses high-obdurability highway concrete, which has the ingredients of cement, coarse aggregate, fine aggregate, water, modified steel fiber and rubber microparticle.
本发明公开了一种高强韧性的公路用混凝土，其配料为水泥、粗集料、细集料、水、改性钢纤维、橡胶微粒。
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