雌性蛋白包括卵黄蛋白和卵黄蛋白原，是卵生类动物早期生命阶段中主要的营养物质来源。
Female specific proteins, containing vitellin (Vn) and vitellogenin (Vg), are main nutrition resource in early stage of life for oviparous animals.
近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
如您将在本系列第2部分中见到的，RUP的细化阶段着重于在生命周期早期解决技术风险。
As you will see in Part 2 of this series, RUP's Elaboration phase focuses on addressing technical risk early in the lifecycle.
应用推荐