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From SPF wister rats were extracted from the femur BMSCs nestin cultivation, and third generation will BMSCs and join BMP - 2 after polylactic acid/Hydroxyapatite Poly (Lactid Hydroxyapatite/L - and PLLA/HA) composite material compound for in vitro cell culture, BMSCs MTT method in detecting the proliferation of biological material surface conditions, Scanning electron microscopy to observe its surface ultrastructure and cells in the growth of the material.

从SPF级wister大鼠股骨中提取BMSCs进行原代和传代培养，将第三代BMSCs与加入BMP-2前后的聚乳酸/羟基磷灰石（Poly L-Lactid /Hydroxyapatite， PLLA/HA）复合材料复合进行体外细胞培养，MTT法检测BMSCs在生物材料表面的增殖情况；SEM观察其表面超微机构及细胞在材料上的生长情况。

Methods:Myocyte apoptosis in patients with sudden death caused by AMI and in healthy subjects who died in traffic accident were studied by means of TdT-mediated dUTP Nick End Labeling,DNA laddering on agarose gel electrophoresis and electron microscopy.

用末端原位标记法、DNA电泳和电镜3种方法检测急性心肌梗死猝死患者和心脏正常的车祸死亡者心肌细胞的凋亡。

The microvasculatures of the lungs of the Rhabdophis tigrina lateralis and the Trimeresurus jerdonii are studied by scanning electron microscopy using corrosion cast s.

利用微血管铸型方法和扫描电镜观察研究了虎斑游蛇和菜花烙铁头的肺微血管构筑情况。

The structures of papilla of lemma among species in 21 Oryza and 2 Leersia were observed by scanning electron microscopy.

在细胞壁表面构筑的介观结构SiO〓具有结构的多样性，可作为植物分类的一种有用指标：用扫描电镜对稻属植物21个种和假稻属植物2个种的外稃表面乳突作了观察。

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

In this letter, a lensless in-line digital holographic microscopy is presented for dynamic metrology of micro-electro-mechanical systems devices.

针对MEMS器件的动态计量问题，提出一种无透镜的同轴数字全息显微方法。

The ultrastructure of the gill surface in largemouth bass Micropterus salmoides and blue gill Lepomis macrochirus was investigated using scanning electron microscopy.

应用扫描电镜对大口黑鲈Micropterus solmoides和蓝鳃太阳鱼Lepomis macrochirus鳃的表面微细结构进行了观察。

The chemical structure and mesomorphic properties of this series of compounds were characterized by FT-IR, MS, 1H NMR, polarizing optical microscopy and DSC techniques.

利用FT-IR、MS、1H NMR、POM、DSC 表证了所得化合物的结构和介晶性，并选择几种双液晶基元液晶测定了它们的机械黏度和在主体液晶中的螺旋扭曲力

In the thesis, By using x-ray diffraction, energy spectrum analysis, metallographical analysis and scanning electron microscopy and opitimzing technology, the effects of the element Ga was researched and discussed in the magnetic performance and microstructure of Sintered Nd15Fe78B7+Ga permanent magnets made by powder metallurgy.

本文采用粉末冶金方法，通过x射线衍射、能谱分析、金相分析和电子扫描等一系列的检测与分析方法，优化工艺，研究并讨论了添加Ga元素对烧结Nd_(15)Fe_(78)B_7系永磁体磁性能和微观结构的影响。

In this paper, the effects of concentrated H2SO4 on dissolution of metatitanic acid was researched and the prepared powder was characterized by X - ray diffraction and transmission electron microscopy.

研究了浓硫酸对偏钛酸的溶解情况，并用X射线衍射仪和透射电子显微镜对制得的粉体进行表征。

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。