The primary chalazal haustorium ramifies around the vascular tissues of the ovule.初生合点吸器沿着胚珠的维管组织分支.The mechanism of this anomalous vascular response is unknown.此种不规则的血管反应的机制尚不清楚.It has been applied to attached algae and...
The mechanism of this anomalous vascular response is unknown.此种不规则的血管反应的机制尚不清楚.Male - sterility mainly results from the abnormality of mesospore, tapetum tissue and vascular bundle.中层组织 、 绒毡层组织及药隔维管束异常均是雄性败育的因素.Objective...
care for the elderly and infirm对年老体弱者的照顾We are here to protect and assist the weak and infirm.我们来这里保护、帮助年迈体弱者。...her aging, infirm husband.她年迈体弱的丈夫He was over eighty years of age,infirm and totally blind.他80多岁了,身体虚弱,双目失明...