This paper introduces two methods to measure the internal resistance of electric meters, the one is the substitution method and the other is the halfrange method.
介绍测量表头内阻的两种方法:一为替代法,一为半量程法。
2
Earlier studies have documented half brain sleep in a wide range of birds.
早些时候的研究已经记录了种类广泛的鸟类的半脑睡眠。
3
The time required for the energy released by a radionuclide to decrease by half (i.e., the "half-life") range from tiny fractions of a second to millions of years depending on the type of atoms.