n.抵抗力；电阻率；电阻系数
The motion strengthens body resistivity and decreases the opportunity to be sick. 运动增强身体抵抗力，减低患病的机会。
The numbers across the top show resistivity. 顶部的一排数字表示电阻率。
The resistivity is then constant and Ohm's law is obeyed. 因此电阻率也是常数，并遵循欧姆定律。
