导光管照明计算是一个十分复杂的问题 ，国内外已有的导光管照明计算多建立在几何光学的基础上。
The lighting calculation of light guide is a complex problem, which is always based upon the geometric optics.
如果知道所有的这些变化率，那么求偏导时，就不需要把u、v代回f了。
If we know all these rates of change then we know how to take these derivatives without actually having to plug in values.
它提供了在任何现有的表面上的最高权力能力和最低的导通电阻封装。
It provides the highest power capability and the lowest possible on-resistance in any existing surface mount package.
应用推荐