Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为...
硕大的火漆封蜡上盖着温思罗普的纹章.The broad seal was impressed with Winthrop's coat of arms.他用印盖在火漆上.He impressed a seal on wax.我在熔软的火漆上盖了章.I impressed my seal on the melted wax....