He wants to see how hard it is to crack into the network without even touching a single tool.
他想知道要闯入网络而不使用任何工具的难度如何。
Crack-free surface that is formed in ductile regime of glass can be obtained under conventional cutting conditions if the tool parameters are chosen properly.
如果刀具参数选取得当，能在常规切削用量下获得在玻璃的塑性域内形成的、无微裂纹的加工表面。
It found that this kind of wheel has high efficient for sharpening tools. Using this wheel can avoid the tool surface crack due to grinding and reduced the dust in shop.
通过研究发现，浸渗砂轮在刀具刃磨方面是一种非常有效的工具，对于防止刀具表面磨削烧伤和减少车间粉尘污染有其特殊的使用价值。
The paper presents reasons and preventing measures for crack of big blank cap happened in roughing tool, which can give some reference for such machine production in future.
本文针对近期生产的选矿厂大端盖，在粗车加工时发现的裂纹缺陷进行分析，查找原因，制定预防措施，保证了后期制作此类铸件的质量。
The paper presents reasons and preventing measures for crack of big blank cap happened in roughing tool, which can give some reference for such machine production in future.
本文针对近期生产的选矿厂大端盖，在粗车加工时发现的裂纹缺陷进行分析，查找原因，制定预防措施，保证了后期制作此类铸件的质量。
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