脱氧鬼臼毒素对粘虫的生长发育有显著抑制作用.Deoxypodophyllotoxin have strong development inhibition to armyworm.说明光周期是影响粘虫发育 、 殖和飞翔的重要环境因子之一.The experiment shows that photoperiod was an important environmental factor affecting armyworm develo...
G raft or kickbacks paid to officials or law enforcem ent authorities.暗中付给官员或执法人员的回扣.Members of their administrations received kickbacks and bribes from lobbyists and businessmen.他们的管理层人员收受来自说客和商人的佣金和贿赂.Is receiving or g...
贫困、文盲与高出生率密切相关。Poverty and illiteracy go together with high birth rates.由于出生率下降，产科服务会随之削减。Maternity services were to be reduced in consequence of falling birth rates.有几个因素已被援引来说明出生率降低的原因。Several factors have been adduced...
在油质种子中,它们可占据贮藏细胞总体积的大部分.In oil seeds they may occupy a large fraction of total volume of reserve cells.另外还有水藻, 它的油质可以用做燃料.And then there is algae. Its oil can be used for fuel.油质鱼含有大量被称为欧米加3族的脂肪酸.Oily fish have large amo...