So the principle of the uniformity of nature which underlies every inductive argument, which can't itself be argued for because arguing for it takes us in a circle.
所以自然统一性的原则是，每个归纳论点背后，都不能证明自己，因为这是循环证明。
The working principle and method of using the ultrasonic technology to measure the loose circle of the roadway surrounding rock are expounded.
文中阐述了利用超声波测试技术探测巷道围岩松动圈的工作原理与方法。
According to the superposition principle and the second kind of complete ellipse integral, the magnetic field current circle was calculated.
运用磁场的叠加原理及第二类完全椭圆积分，给出了椭圆形稳定电流环垂直轴上的磁感应强度。
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