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The verb “cut” is used when something is made smaller with scissors or when someone is hurt by something sharp. It can......
Collaborative optimization model of renewable energy development considering peak shaving costs of v
China has set carbon emission goals for 2030 and 2060.Renewable energy sources,primarily wind and photovoltaic power,are......
目的 系统评价剃毛与非剃毛对减少术后切口感染率的影响.方法 计算机检索国内外电子文献数据库,根据纳入标准进行筛选,并进行质量......
以典型冲压件整修模的模具结构为例。因受零件自身尺寸的限制,极大影响了模具凹模的强度和刚度。介绍了一种解决方法,可供同行在类似......
本文通过利用普通数控车床,并辅助一套定位分度夹具,较好地解决了分度圆锥槽的加工问题,巧妙利用数控车床对复杂零件进行刨削加工,......
为提高等速万向节保持器窗口的加工效率,采用半精冲方法代替目前的铣削和拉削.介绍冲模所用模具材料、热处理要求及加工余量的选择......
比较了德系安哥拉兔手拔毛与传统剪毛的经济效益,结果表明:手拔大粗毛与剪毛相比,长毛兔产毛量提高了11.4%:毛价平均提高了47.33元/kg;在饲......
单纯冲孔工艺,孔的质量不高,使用不广。针对这一问题,提出在冲孔的行程中对孔进行修整的新工艺,并对一次行程中完成此工艺的推刀式复合......
In recent years, high annual increasing load demand in Saudi Arabia has led to large investments in the construction of ......
持续能量摄入(Sus EI)的上限对于哺乳期母体的生存非常重要。先前的研究表明大绒鼠Eothenomys miletus Sus EI的限制可能受到外周限......
从弹性啮合基本方程出发,系统地分析了一般平面齿轮传动的啮合平衡条件,推导出了考虑齿轮弹性变形情况下的修形量差别公式和任意齿形......
DesignofPlungeShavingCuttersforFinishing internalGearsLIULiping;LIHuamin;SUNJianhua(刘俐平,李华敏,孙建华)(Dept.ofMechanicalEngineering.........