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1.The fatigue life increases with increasing modulus of base material in a power function. However, the fatigue life can not infinitely increases with increasing modulus of the base. With an ascending segment, the fatigue life curve tends to a constant.
沥青面层的疲劳寿命随着基层材料模量的增加呈幂函数的形式增加,但由疲劳方程可以看出,寿命并不是随基层材料模量的增加而无限的增加,疲劳曲线在经过一个上升段后,逐渐趋于一个常数值,这说明,这时基层模量对寿命已不作关键性贡献;收藏指正
2.All the steps of knowledge, from first to last, carry you further on the same plane, but could never raise you one foot above your ancient level of earth: whereas the very first step in power is a flight—is an ascending movement into another element where earth is forgotten.
自始至终，知识的阶梯在同一水平面能推动你更进一步，但是不能提高到你原有水平面之上，哪怕是一点点：然而，能力上的第一步是第一次飞跃——是一个上升到另一要素的运动，在那里，原有水平被遗忘。收藏指正
3.As one kind of key equipment in piping work of large-scale turbo-generator set in power plant,the machine is especially applicable to various welding bevels,flat end and angle of outer &inner diameter of ascending pipe,elbow pipe,bend ,flange and etc.,which greatly meets demands in pipe processing of construction site and manufacturers.
本机床是电站大型汽轮发电机组的管道施工的关键设备，对直管、弯管、弯头、法兰等管体的各种型式焊接坡口，端平面，内外径过缓斜度及直口，能满足施工现场和制造厂家对各种管件的加工要求。收藏指正
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