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美国科学家找到一种新的检测方法,可以测定钢在承载时何时会产生过度疲劳以及何时可能导致断裂。 美国伊利诺斯理工学院的物理学家汤姆斯·厄尔博和他的同事使用磁力成功地测量出钢梁的疲劳强度。一个钢棒——即使是已
American scientists have come up with a new test that determines when steel can become over-tired when loaded and when it can cause it to break. Thomas Elbow, a physicist at the Illinois Institute of Technology, and his colleagues used magnetic force to successfully measure the fatigue strength of steel beams. A steel rod - even if it is already