查询词典 data base
- 与 data base 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Genetic diversity and phylogenetic relationship in goldfish were examined using mitochondrial D-Loop partial sequences at eight representative varieties of goldfishes and wild crucian carp. The eight representative varieties were Red Common Goldfish, Red Fantail, White Oranda with Red Carp, White Pearlscale, Red Tigerhead, Black Moor, Red Moor with Butterfly Tail and Red Bubble-eye with Dorsal Fin. 699 base-pair nucleotide sequences of Mitochondrial D-Loop were examined and analyzed for genetic polymorphism, Sequences data showed that all 129 sequences were grouped into 17 haplotypes. Nine representative varieties shared same haplotype. Five representative varieties of goldfishes had haplotypes respectively.
采用PCR技术扩增了红草金鱼,红文鱼,红顶白高头,白珍珠,红狮头,红龙睛蝶尾,墨龙睛,红水泡八个品种金鱼和野生鲫线粒体DNA的D-Loop区部分序列,PCR产物经纯化、测序、同源序列比对后获得长度为699bp的核苷酸序列,在129个样本中共检测到了17个单倍型,9个品种共享1种单倍型,5个品种的金鱼(BM, MB, WR, RF, RC)检测到各自独有的单倍型。
-
The results of real road test and data analysis indicate that the method is feasible with good theoretical base and provides supports to the generation of simulation road for virtual test of prototype vehicle.
通过实际测试和数据处理分析,说明该方法理论依据正确可行,可以为虚拟样机仿真路面的生成提供数据支持。
-
On base of consulting relevant data,field survey was done using normal grassland survey method.
在查阅相关资料的基础上,采用常规草地调查的方法进行了实地调查。
-
At present, it is easy to filtrate some special intrusive data-packet in firewall system, base on network security technologies.
对于在防火墙层次实现网络入侵的过滤,在现存的技术手段和科学研究的基础上,已经可以比较容易地实现一些特定入侵的过滤。
-
On the basis of previous study on deep channel, the South Branch,Xinqiao Channel,Nanxiaohong and Main Channel of Nangarg are chosen as the typical flood and ebb channels. Field data sampled in the flood season of 2001 and the dry season of 2003 are used as the base of the analysis of hydrodynamic characteristics, such as current, sediment, dominant current and dominant sediment.
在前人对河口冲刷槽研究的基础上,选择长江口南支、新桥水道、南小泓和南港主槽作为典型涨、落潮槽研究对象,以2001年洪季和2003年枯季实测资料为根据,比较分析了长江口涨落潮槽的水流、泥沙、优势流和优势沙等动力特征,结果表明用单一因子分析河槽性质不够全面。
-
To the question of unclear base structure framework, the disputed geological horizon and the region deposition system, and under cognition of the distribution of flysch, hydrocarbon reservoir-forming mode of the central uplift belt and south ramp region in the sag, this thesis expatiates the Peleogene structure and the deposition evolution characteristics of the Hhuiming sag, based on the theory of structural geology, sedimentology, petroleum geology, synthetically using the data of geology, geophysics and test analysis, and analyses hydrocarbon reservoir formation mode and its control factor, connect with the petroleum geology achievement. It gives a scientific reference to enhance the exploration effective in the research area.
针对研究区基地构造格局认识不清,地质层位、区域沉积体系认识存在争议,洼陷浊积岩分布情况、中央隆起带及南部斜坡带成藏机理有待深化认识等问题,论文以构造地质学、沉积学、石油地质学等理论为指导,综合利用地质、地球物理和测试分析等资料,开展惠民凹陷古近纪构造与沉积演化特征研究,结合石油地质成果分析油气成藏模式及控制因素,为有效提高研究区勘探成效提供科学依据。
-
This paper discussed the coordinate transformation method of WGS84 coordinate system to 1954-BeiJing Gauss grid coordinate. Introduced transformation model of WGS84 to Beijing 54 and computing method of transformation parameter. According to different model and computing method, computed and compared with the result combine real data. Think that adopt base-line vector quantity ask four parameters model have higher transformation precision.
本文详细讨论了WGS84大地坐标转换到北京54坐标系下的高斯平面坐标的方法,重点介绍了WGS84和北京54的空间直角坐标的转换模型及转换参数的计算方法,并根据不同的模型和计算方法结合实际数据进行计算和结果的比较,认为采用基线向量求解的四参数模型具有较高的转换精度,分区变换和提高控制点精度也能提高转换的精度。
-
In a digital environment where all the data sources are geometrically registered to a common geographic base, the potential for information extraction is extremely wide.
在数字环境下的所有数据源的几何注册到一个共同的地理基础,潜在的信息提取非常广。
-
In the base of population and quantity of house-completed data of Xi'an, the paper builds an Auto-regressive Distributed Lag Model of population Geordie coefficient and quantity of house-completed, and analyzes the relationship between the two, which find that house construction is one cause of population suburbanization, but contrarily it's not.
本文以西安市人口和住宅竣工量为基础数据,建立人口基尼系数和住宅竣工量之间的自回归分布滞后模型,并对二者的关系进行了分析,发现住宅建设是西安市人口郊区化的动力之一,反之则不然。
-
Based on the detailed field investigation and isotopic data, the stages of magmatic activity in the Nandan-Hechi metallogenetic belt base been hued out in this paper.
本文根据野外地质观察,结合同位素测年资料厘定了丹池成矿带内岩浆侵人期次。
- 推荐网络例句
-
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。
-
There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。