At present there exist two kinds of manufacturing met hods for silicon-based lasers,i.e.,heteroepitaxy and bonding.

目前制作硅基激光器的方法分为两类，异质结外延生长和异质材料键。

In this paper, we studied the screening me hod, procedure and results of rice somatic mutants with resistance to Pyricularia oryzae Cay. using phytotoxin.

摘 本文研究报道了抗稻瘟病细胞突变方法、程序与结果，并对有关问题进行了讨论。