查询词典 microscopy

Platycodon grandiflorum; fluorescence microscopy; pollen tube; self-compatibility

桔梗；荧光显微镜技术；花粉管；自交亲和

Leaf-epidermis cells and stomatal apparatuses of Polygonatum cyrtonema at its different developmental stages were examined by light and scanning electron microscopy.

通过光学显微镜和电子扫描显微镜，对多花黄精不同发育时期的叶表皮细胞及其气孔器进行了研究。

X-ray diffraction,transmission electron microscopy, BET surface area measurement and thermal analysishave been used to determine the characteristics of the nanopowdered silver prepared by chemical reduction with the polymolecular protectant.

用X -射线衍射、透射电镜、比表面测定和热分析技术，对从高分子保护化学还原法制得的纳米Ag粉，做了相关的测定表征；从表观比热的测定结果探讨这一亚稳微晶体系在加热过程和热处理后所发生的各种变化。

The recombinant Hansenula polymorpha strains for secretory expression of HBsAg were screened and cultured in YPD, BMMY and MM media respectively. The expression levels of HBsAg were determined by ELISA, and the virus-like particles were observed by transmission electron microscopy.

将其电转化多型汉逊酵母尿嘧啶缺陷型宿主菌ATCC34438(Ura3-)，筛选分泌表达HBsAg的汉逊酵母工程菌株，并比较在YPD、BMMY、MM3种培养基中分泌表达HBsAg的水平，ELISA检测培养上清液中HBsAg的表达量，透射电镜观察类病毒颗粒。

The system is composed of polysilicic ions and polyaluminous ion s with the participation of polyaluminous ion s, the Si-O specific line which is inherent in the examination of infrared spectrum is gradually reducing and becoming a broad belt, the non-ion bond reactions between polysilicic ion and polyaluminous ion is proved by observasion with electron microscopy.

稳定胶体态的硫硅聚铝和氯硅聚铝是性能优良的絮凝剂，体系中含有聚硅离子和聚铝离子。红外光谱测试固有的Si—O特征峰随聚铝离子的引入逐渐衰减，变成较宽的带，聚硅离子与聚铝离子间存在着一种非离子性的健合作用，电镜摄像观察证实了这一结论

The shape and size distribution of ice crystals in the frozen wet gluten were studied indirectly by microscopy and mercury porosimeter.

用扫描电镜和压汞仪间接观察和分析了冷冻的湿面筋蛋白中冰晶的形状和粒度分布。

By means of transmission electron microscopy, it was showed that the photoreceptor of Portunus tritubereulatus is composed of eleven reticular cells.

应用透射电镜技术显示，三疣梭子蟹光感受器由11个小网膜细胞组成。

The shredding of agro-residues, such as corn stalk, straw, wood sawdust and other herbaceous biomass, were investigated in this dissertation. According to the machinery mechanics of shredding, the components, shearing strength and pressive strength of the biomass were analysed in theory, which played a critical role during the shredding process. And the powder was examined by Scanning Electron Microscopy. It was founded that shearing,splitting and grinding force were appropriate for shredding biomass. The results also showed that primary shredding was the bulk shredding model, which was mainly affected by shearing and splitting force, therefore the curly knife and the straight knife were useful; while the fine shredding was the surface shredding model, affected by splitting and grinding force, and the straight knife useful.

本文以农林废弃生物质为研究对象，结合机械力破碎基础理论，从影响其破碎的化学组分和剪切强度、抗压强度等力学角度进行了理论研究，并运用扫描显微镜对破碎产物的微观结构进行了实际分析，结合二者得出如下结论：最适合生物质的施力方式为剪切力、劈碎力和磨削力；生物质粗破碎为体积破碎，主要受剪切力和劈碎力作用，刀片宜设计成弯口刀和单面直刃刀；细破碎为表面破碎，主要受剪切力和磨削力作用，刀片宜设计成双面直刃刀。

We used transmission electron microscopy to study the ultrastructural changes in egg cell, zygote and two-celled proembryo of Beta vulgaris to provide information on the reproductive biology of angiosperms and related research into sugar beet.

为丰富被子植物生殖生物学资料，并为甜菜相关研究提供参考，应用透射电镜技术研究栽培甜菜卵细胞、合子和二细胞原胚的超微结构特征。

Under scanning electron microscopy, along with the extension of the culture time, the chondrocytes grew and propagated well on the surface. On 3 weeks, the cells adhered to the surface, and extended the pseudopodia, by which the cells were connected each other. The cells secreted matrix, which deposited around the cells and the surface of meniscus. In some area, the cells formed the structure like cartilage lacuna.

扫描电镜观察，随着培养时间延长，细胞在材料表面生长良好，细胞密度增加。3周时，可见细胞黏附在材料表面，有伪足伸出，细胞间通过伪足相互连接，并可见细胞分泌的大量基质沉积于细胞周围和材料表面，部分区域形成类似于软骨陷窝样结构。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。