He is descended lineally from an immigrant 他是一位移民的直系后裔。
2.
The results indicate any elliptically polarized light can be compensated to become lineally polarized light throught / 4 wave - plate as long as the fast - axis ( slow - axis ) of / 4 wave - plate and the long - axis ( short - axis ) of elliptically polarized light are in the same orientation , but partially polarized light cann ' t 结果表明，只要/ 4波片的快（慢）轴与椭圆偏振光的长（短）轴方位一致，则任何椭圆偏振光经过/ 4波片后均可以补偿为线偏振光，而部分偏振光经过/ 4波片后仍为部分偏振光。
