显微镜

With the popularization of field emission gun transmission electron microscope s,the information limit and the point resolution become two key important parameters to characterize the resolution ability of the microscope s.

随着场发射枪透射电子显微镜的普及，电镜的信息分辨极限和点分辨率成为表征电镜分辨本领的两个重要指标。

Using the total cylinder sampling system, the investigation on the morphology and micro-element of particulates from a electronically controlled diesel engine were conducted by a field emission gun transmission electron microscopy, and the results were analyzed by the image technique.

基于电控燃油喷射柴油机的全气缸取样系统，利用场发射透射电子显微镜和图像处理技术，对柴油机燃烧过程中形成微粒的形态特性和微量元素进行了分析。

The source of electrons in an electron microscope is a heated filament.

电子显微镜中的电子源，是一加热的灯丝。

Biologists have heated the filiform structures in the nuclei of human cells while observing them under a microscope.

人类细胞核中的丝状结构，生物学家在显微镜下，用加热的方法，展开了男女两条基因链。

Many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.

细菌是如此的微小，周围化学分子的一举一动都会对它们产生影响。在显微镜下，细菌，甚至包括那些没有鞭

They range in size from the microscopic flagellate Micromonas to giant kelp that reach 200 ft (60 m) in length.

大小不一，从显微镜下的单细胞鞭毛虫，到长达60公尺的大型褐藻。

This is the way a Flatlander would build a microscope, says Smolyaninov, referring to Edwin Abbott's 1880 novel Flatland, set in a 2D world inhabited by 2D characters.

Smolyaninov联想到艾德温阿巴特1880年描写住在二维世界里的二维生命的小说《平原》说，"这是一种在平地上制造显微镜的方案。"

METHODS: After AIF△1-120 gene was successfully cloned, the shorter truncated human AIF gene (AIF△1-400) was constructed by deleting the Nterminal mitochondrial localization sequence, the coding sequence of flavine adenine dinucleotide binding domain and nicotinamide adenine dinucleotide binding domain of AIF protein.The truncated human AIF gene (AIF△1-400) was inserted into the pIRES2EGFP and pcDNA3 eukaryotic expression vectors, and the coexpression vectors were then transfected into HeLa cells with LipofectAMINE.

在AIF△1-120基因克隆成功的基础上进一步改造，构建截去AIF基因线粒体定位信号，FAD结合结构域和NADH结合结构域（1-400位氨基酸）编码序列的AIF△1-400基因，将其克隆入pcDNA3和pIRES2EGFP真核表达载体，用脂质体法转染HeLa细胞，通过荧光显微镜观察，MTT检测等方法检测该基因在转染细胞中的表达及其对肿瘤细胞的促凋亡活性。

METHODS: After AIF△1-120 gene was successfully cloned, the shorter truncated human AIF gene (AIF△1-400) was constructed by deleting the Nterminal mitochondrial localization sequence, the coding sequence of flavine adenine dinucleotide binding domain and nicotinamide adenine dinucleotide binding domain of AIF protein.

在AIF△1-120基因克隆成功的基础上进一步改造，构建截去AIF基因线粒体定位信号，FAD结合结构域和NADH结合结构域（1-400位氨基酸）编码序列的AIF△1-400基因，将其克隆入pcDNA3和pIRES2EGFP真核表达载体，用脂质体法转染HeLa细胞，通过荧光显微镜观察，MTT检测等方法检测该基因在转染细胞中的表达及其对肿瘤细胞的促凋亡活性。

Result show:the solution,extracted from rat rail tendons,consist mainly of type I collagen;No growth of bacteria in 37℃ thermostatic culture box for 72 hours;Absorbing the height of ultraviolet-spectrophotometry is 230 nm by using flicker photometer examination;Amino acid in type I collagen consist of aminoacetic acid(40 per cent) and proline(14.3 per cent);Under microscope:collagen gel netted constraction consist of original collagen fibril that had been fairly well-distributed and had a quite regular striate lines ;The collagen solution prepared collagen gel matrixes in 37℃ thermostasis for culture cells and also prepared collagen solid film by washing collagen gel with a phosphate solution for plasty surgery materials.

结果：提取液主要为Ⅰ型胶原蛋白；72小时37℃恒温培养箱内培养无细菌生长；紫外分光光度计测定，吸收高峰为230nm；氨基酸成分主要为甘氨酸：占40%，脯氨酸：14.3%。显微镜下见：相互交织的胶原原纤维结构组成的网状结构；纤维均匀，有规则横纹。胶原蛋白液在37℃恒温下，可制成凝胶，用于培养细胞；用磷酸液冲洗胶原蛋白凝胶可成固体片状，制成胶原膜，用作医用材料。

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。