Recent technological advances in reproduction, such as artificialinsemination and in vitro fertilization, have increased the full income of women relative to men.
比如人工授精和体外受精，近来的生育技术进步使女性的总收入相对于男性增加了。
2
After the 5, 500 mile move, the couple visited experts at California and they tried four cycles of artificialinsemination, but none of those worked.
Artificialinsemination of silkworm have been succeed in research, and the cryopreservation of its germ cell have important significance in long-term conservation of the given gene.