Abstract : the drawing breakage of hard wire are classed from materials and technology . its causes are analyzed , and some typical examples are put forward 文摘:从原料和加工工艺方面对拉拔断裂原因进行分类;介绍了根据拉拔工艺、宏观断口分类分析来判断硬线拉拔断裂原因的方法和部分典型事例。
Who live in remote areas along the cururu river in brazil . as many mathematicians have claimed , the new study shows that the most basic concepts of maths - space , time and number - are hard wired in the human brain and independent of language . researchers in france and at harvard university found that the munduruk 据每日电讯报1月20日报道,来自法国法兰西学院和美国哈佛大学的研究人员对生活在巴西库鲁鲁河沿岸偏僻地区的蒙杜卢库部落人经过研究后发现,蒙杜卢库人就像古希腊人那样对几何学很有天赋。
But this finding is challenged today in the journal science by a study of the munduruk , who live in remote areas along the cururu river in brazil . as many mathematicians have claimed , the new study shows that the most basic concepts of maths - space , time and number - are hard wired in the human brain and independent of language 西学院和美国哈佛大学的研究人员对生活在巴西库鲁鲁河沿岸偏僻地区的蒙杜卢库部落人经过研究后发现,蒙杜卢库人就像古希腊人那样对几何学很有天赋。