focal line

• 焦线

focal line的用法和样例：

例句

1. The results show that the unequal width element CLA is able to improve the homogeneity along the focus line for an incident laser with both Gaussian and uniform distribution.
   结果表明采用不等宽单元技术能大大改善入射光场为高斯分布型的焦线强度分布均匀性。