种内的

The invention relates to polyimide molding powder with low melt viscosity and a preparation method, which uses 3,4'- diamino diphenyl ether, 3,3',4,4'-diphenyl ketone dicarboxylic anhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride, 3,3',4,4'- triphenyl diether dicarboxylic anhydride, 3,3',4,4'- diphenyl ether dicarboxylic anhydride and other monomers to polymerize at 100 to 140 DEG C, to get molding powder with a melt viscosity in the range of 1000Pa.s to 5000Pa.s.

本发明属于一种低熔体粘度聚酰亚胺模塑粉及制备方法，是采用3，4′-二氨基二苯醚同3，3′，4，4′-二苯酮四酸二酐、3，3′，4，4′-联苯四酸二酐、3，3′，4，4′-三苯二醚四酸二酐、3，3′，4，4′-二苯醚四酸二酐等单体在100～140℃聚合，获得熔体粘度在1000Pa.s～5000Pa.s范围内的模塑粉。

The primers of ITS-1 and ITS-2 proved to be very universal in a large variety of mollusc species. The potential uses of the 2 sequences for genetic variation studies and phylogenetic research in scallop species were discussed too.

这两个变异性较大的序列在扇贝种群中应用潜力很大，可广泛用于种内群体间遗传变异研究、种质鉴别及系统学研究。

The aim of this research is to find out the experimental parameters that affecting the results when analyzing bacteria by MALDI TOF MS, and to set up a general sample preparation protocol for establishing mass database of Bacillus anthracis and Yersinia pestis. It will play an important role in rapid identification of bacteria, and tracing its origin in the scenario of bioterrorism and outbreak of infectious disease for microbial forensic analysis. Methods:As for the universalness of sample preparation protocol for bacterial analysis by MALDI TOF MS, bacteria being investigated included: gram-positive bacteria including B.

本研究通过对MALDI TOF MS分析细菌的方法进行系统的研究，阐明影响MALDI分析的重要实验因素的作用，并建立MALDI TOF MS分析细菌的标准实验方法，从而实现不同菌种和同一种内不同菌株的鉴定，为建立炭疽芽孢杆菌和鼠疫耶尔森氏菌的质量图谱数据库奠定基础，从而能够快速准确地检测和鉴定我国不同来源的炭疽芽孢杆菌和鼠疫耶尔森氏菌，在生物恐怖或传染性疾病爆发时，作为微生物法医学的一种重要技术，快速、准确地鉴定细菌，并追踪其来源。

Methods for ventilating a building may be divided into mechanical/forced and natural types.

建筑物内的通风可以分成机械通风和自然通风两种。

There is a rare breast cancer for the occult, its breast lumps cannot find, in late already appear when the alar transfer.

还有一种少见的乳腺癌为隐匿性乳癌，其乳内肿块不能发现，晚期时已出现腋下转移。

Copper zinc superoxide dismutase is an important antioxidase in animals.

细胞内铜锌超氧化物歧化酶是动物体内一种重要的抗氧化酶。

Uptake behaviors of 103Ru and 106Ru by bivalves were great differences: most of 103Ru uptake by the bivalves was in shells and 106Ru mainly distributed in soft tissues.6 The concentration biokinetics

扁藻、'J'球藻和简单角毛藻对这 7种核素的累积在 48 h内即达到平衡，浓集因于为 10'－10'。

Meanwhile, as a putative neurotransmitter in the brain, carnosine has a protective effect in many diseases such as AD, because of its abundant functions such as an anti-oxidant, in anti-glycation, anti-aging.

同时，有研究表明肌肽作为脑内一种重要的神经递质，对多种神经系统疾病如AD具有保护作用。

Objective To compare the outcome of humeral condylar comminuted fractures treated with four kinds of internal fixation methods.

目的 比较4种内固定方法治疗肱骨髁部粉碎性骨折的疗效。

Bamboo shoot nutrient components of 30 hybrid families of Dendrocalamus latiflorus Munro were tested in order to investigate variation of the descendants.

为研究麻竹杂交子代竹笋营养成分的变异情况，以30个麻竹种内杂交子代家系为材料，对不同家系竹笋营养成分进行了测定分析。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。