The chalazal parts of the endosperm containing free nuclei forms several lobes.包含游离核的合点端胚乳部分形成几个裂片.The nuclei are large, irregular, hyperchromatic, and show prominent nucleoli.细胞核大 、 不规则 、 核浓染, 核仁清晰明显.In most mammals mat...
Much of what we know about nuclei comes through scattering experiments.我们现在对原子核的许多认识来自散射实验.The electron clouds are clearly visible as blurs surrounding the invisible nuclei.电子云就象环绕着看不见的核的一片云雾.There are numerous amoeboid ...