An extensive program of chemical modificaton can also be carried out to discover more active avermectins 这种有白点的菌落形态与灰色菌落类似，可能为放线菌中形成的异核体。
Coenocyte an area of cytoplasm containing many nuclei and enclosed by a cell wall , typically found in many fungi , certain green algae ( e . g 多核细胞，多核体：一定区域的细胞质中包含许多细胞核，由细胞壁包围的生物体。
In the more advanced fungi , especially the basidiomycota , nuclei may fuse some considerable time after fusion of hyphae of different mating strains , forming a dikaryon 在较高等的真菌中，尤其在担子菌门中，不同类型的菌丝融合后细胞核需要较长的时间进行融合，从而形成双核体。
By means of analyses to the intelligent building ' s nucleus common distribution form and structure system in common use , the paper proposes the rule to select system that structure arrangement should harmonize with the building equipment installation 通过对智能建筑核体的常见布局形式及常用结构体系进行分析，本文提出结构布置尽可能与建筑设备融为一体原则进行结构体系的选择。
Chelating and detoxification metal ions are also the focus of many researchers . according to lewis soft - hard acid - base theory , aluminum is the hardest trivancy lewis acid , and polyphenols are lewis base theoretically , they can combine together tightly 根据lewis软硬酸碱理论，铝是三价金属离子中最硬的lewis酸，而多酚类却是lewis碱（电子对供体，亲核体） ，两者可以很好的结合。
This study were designed to investigate development potency of the reconstructed embryos of black bear - cat inter - species nuclear transfer in vitro / vivo , to develop the principle and technology of somatic nuclear transplantation in inter - species of mammalian and to study the mechanism of coordination between cell nuclear and cytoplasm . somatic nuclear transplantation technology has been used to establish stem cell from different animals , which can provide materials to treat various diseases 本研究运用体细胞核移植的原理和技术，以六月龄雌性黑熊的成纤维细胞为供核体，去核未受精家猫成熟卵母细胞为受体，构建种间核移植重组胚胎，研究种问体细胞核移植胚胎的构建方法和重组胚胎的体内外发育潜能及其影响因素。
