查询词典 exact homotopy sequence

The fan delta, sand beach, sand bars and turbidite fan in the TST of SⅡ and SⅢ sequences are the most favorable exploration targets because of favorable source - reservoir - seal assemblages. Since the high - stand system tract in SⅡ sequence has good source - reservoir assemblage and is covered by the regional seal of SⅢ sequence, the hydrocarbon accumulation in this area is controlled by the local seal rock. The HST of SⅡ sequence becomes the second favorable exploration target zone. Because the scales of the sand bodies of alluvial fan and braided river in low - stand system tract of SⅡ and SⅢ sequences are limited, the formation of a large hydrocarbon accumulation is difficult.

良好的生储盖配置使SⅡ层序、SⅢ层序水进体系域的扇三角洲、滩坝及浊积扇砂体成为本区最佳勘探目标层。SⅡ层序高位体系域生储条件配置好，又有SⅢ层序区域盖层的整体封盖，油气聚集受局部盖层直接控制，可成为较有利的勘探目的层。SⅡ层序、SⅢ层序低位体系域的冲积扇、辫状河砂体体积规模较小，难以形成大油气藏。

Methods(1) Construction of plant expression vector containing RS geneThe cloning vector pT-RS was constructed containing RS gene extracted from the leaf tip of Vitis vinifera by PCR amplification and RS sequence was identified by PCR amplification,enzymes digestion and sequence analysis.The plant expression vector containing RS gene was obtained and RS sequence was identified by PCR amplification and double enzymes digestion too.

研究方法(1)含白藜芦醇合酶基因的植物表达载体的构建提取葡萄基因组总DNA，通过PCR扩增得到RS基因，将此基因连接到克隆载体pGEM-T Vector，得到重组载体pT-RS；经PCR、酶切及序列分析鉴定后，将RS基因克隆到植物表达载体pBI121，得到重组载体pBI-RS，用PCR及双酶切方法进行鉴定。

Sequence analysis showed that the BDNF gene of Asiatic Black Bear was highly conserved compared to those of human and giant panda, with an identity of 94.5% and 98.9%, respectively. The deduced amino acid sequence of the mature protein was found to be identical to those of all the reported mammalians. According to gene sequence alignment, the giant panda appeared to be phylogenetically closer to Asiatic Black Bear than the lesser panda.

在推导的多肽序列中，其成熟区氨基酸序列与所有已报道哺乳动物的完全一致；对亚洲黑熊及其相关物种BDNF基因序列的比较分析，发现大熊猫与包括黑熊在内的熊科动物亲缘关系更近，而与小熊猫较远。

Sequence Number field - Indicates the sequence number assigned to the frame; retransmitted frames are identified by duplicate sequence numbers

序列号域－指定分配给帧的序列号；重传帧被标识为相同的序列号

For the case where the firing sequence sets involved are Petri net firing sequence sets we present a method for synthesizing a control strategy by which the closed loop system can generate the supremal controllable subset of a given firing sequence set.

在目标序列集不可控而所考虑的序列集都是Petri网点发序列集时，提出了综合给定序列集的极大可控子序列集生成器的方法。

It's really the natural setting for algebraic topology because the traditional algebraic invariants (fundamental group, homolog group,etc.) arc isomorphic not only for homeomorphic spaces but for spaces of the same homotopy type. Homtopy epimorphisms and monomorphisms are special morphisms in the category of topological spaces and the initial research of them may be traceable to S.T.

同伦论的本质是利用比同胚关系更广泛的等价关系—同伦关系来对拓扑空间进行研究，这也是代数拓扑研究中一种自然的考虑，因为传统的代数不变量不仅在同胚的空间之间保持同构，而且在具有相同伦型的空间之间也保持同构。

We also study alternating group A_5 actions on the homotopy S~2×S~2 in this chapter.

本章还研究了同伦等价于S~2×S~2的Spin 4-流形上的交错群A_5作用。

Homotopy perturbation method; MOL method; nonlinear partial differential equation; approximate solution

基础科学，数学，数学分析同伦摄动法；直线法；非线性偏微分方程；近似解

In HSCM, the homotopy arclength continuation method is improved in three aspects.

在同伦－同时校正混合算法中，对同伦弧长微分算法进行了多项改进。1。

The homotopy continuation method with the improved algorithm for path tracking has been used in solving the mechanism problems sucessfully.

将改进算法应用于求解机构学问题的亏欠度方程组，取得了满意的结果。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。