The biological control progress of beet armyworm and the prospect were reviewed.本文综述了甜菜夜蛾生物防治进展以及对生物防治的展望.Deoxypodophyllotoxin have strong development inhibition to armyworm.脱氧鬼臼毒素对粘虫的生长发育有显著抑制作用.Deoxypodophyllotoxin hav...
Over a given period, the value of shares will rise and fall.股票的价值在某一特定的时期内会有涨跌。They issue a fixed number of shares that trade publicly.他们发行一定数量的可公开交易的股票。Shares slid 11p to 293p after brokers downgraded their profit estim...