Halfdann.哈夫丹halfn.一半；下半场；半学年adj.一半的；不完全的adv.一半地；不完全地Half the fruit was bad.水果有一半是坏的.half of the elastic plane弹性半平面Half of it was damaged.这东西有一半被损坏了。Half-security component安全连接件half-wavelength antenna半波长天线half-wavelength voltage半波长电压half-wave transformator半波变压器half-power burst length半功率突发脉冲长度half-banded sea-perchn.半带笛鲷Half-physics simulation半物理仿真

1. Raise a number to the power of an exponent.
   使数字自乘为指数的幂。
2. The paper presents a method used to calculate annulus and bit hydraulics in power law fluid.
   给出一种求幂律流体环空循环压耗及钻头水力参数的计算方法。