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主要分为两类，异质结外延生长和异质材料键合。

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

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