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Secondly, by introducing the generators of the infinitesimal transformations of Jourdain, the Noether′s theorem for the above nonholonomic systems of variable mass in event space has been obtained, which is based upon the invariance of the differential variational principle under the infinitesimal transformations of group.

这一成果揭示了力学系统的守恒量和其内在的对称性的关系，极大地推动了力学、物理学的发展。在近20年来，国内外的许多学者相继对Noether定理做了多方面的推广，不但用Hamilton作用量而且用微分变分原理研究完整和非完整系统的守恒律。

At last,introducing"coupling matrix library"and utilizing Jourdain'svelocity principle and forward recursive formulation method,the theoryestablished in chapter two and three is successfully extended to couplingdynamical formulation modeling of complex flexible multibody system.

最后，在第二、三章的理论基础上，本文引入"耦合矩阵库"的概念，利用Jourdain速度变分原理和单向递推建模方法，成功地将该理论推广到了复杂柔性多体系统刚-柔耦合动力学程式化建模。

Apparently, the results is determined extremely by theoretical algorithm. In 147 zinc-finger-containing genes, 50nt identity sequences were extracted. The results hint that 15 genes may related to block evolution. we analyzed the phylogenetic map of these 15 genes by uncorrected distance, Jukes Cantor distance, Tamura distance, Tajima-Nei distance, Jin-Nei distance or Kimura distance correction, but we found no satisfied result according to the block exchange pattern mentioned before. Introducing Bootstrap test to assistant correction, an comparatively perfect map was drown by Neighbor Joining method.

以147个含锌指基因为模板，我们搜索了其中的50nt一致序列作为板块式进化的核心，获得15个相关基因，应用无校正距离、Jukes Cantor校正距离、Tamura校正距离、Tajima-Nei校正距离、Jin-Nei校正距离和Kimura校正距离等分析了他们之间的进化关系，结果与已知的板块交换模式吻合度较差，引入靴带检验对Jukes Cantor校正距离结果进行统计学校正，并重新用Neighbor Joining方法绘制进化图，结果可靠性大大提高。

The linear sweep method can be fooled by introducing garbage data immediately after an unconditional jump instruction.

通过在一条无条件跳转指令之后立即插入无用数据，能够欺骗线性扫描方法。

In more competitive markets, companies tend to innovate in good times and bad, explains Yuko Kawamoto of Waseda University, but in Japan it often takes a downturn to get companies and consumers to try new things. During Japan's "lost decade" in the 1990s some companies flourished by introducing high-quality products at low prices.

据早稻田大学的Yuko Kawamoto解释，在更具竞争性的市场中，公司倾向于在经济繁荣和衰退时进行创新，但在日本，常常是经济下行时才会使公司和消费者尝试新的东西。20世纪90年代在日本"失落的十年"期间，有些公司通过低价引入高端产品而繁荣兴旺。

Once again, I thank to master and also my student Too Kaye Shyang for introducing "Qigong" to me.

我再次感谢老师和我的学生涂凯祥介绍了"气功"给我。

Overbuilders and how to play keno ontario Competitive Carriers Competitive carriers face unique challenges while introducing innovative and cost effective services to their constituents.

Overbuilders以及电信运营商竞争性运营商的竞争面临着独特的挑战，同时引进创新和成本效益的服务，他们的选民。

Excuse me for not introducing you to Kermit.

对不起，我没有把你介绍给凯米特，我想当然地认为你们互相认识。

Constituting dicycle; 2. region selectively reducing six-membered ring ketocarbonyl radical; 3. introducing 7alpha-hydroxy group; 4. Aldol reaction to introduce side chain and obtain 8alpha-hydroxy group; 5. oxidizing the position 7 hydroxy group into ketone; 6. turning the configuration of the position 7 hydroxy group; 7. glycosidating the position 7 hydroxy group; and 8. eliminating protecting group to obtain the target compound.

该方法包括如下步骤：(1)双环的构建；(2)区域选择性还原六元环酮羰基；(3)7α-羟基的引入；(4)Aldol反应引入侧链，同时得到8α-羟基；(5)7位羟基氧化为酮；(6)7位羟基构型的翻转；(7)7位羟基的糖苷化；(8)脱除保护基得到目标化合物。

One of the label's highlights is introducing vocalist/keyboardist Diane as a composer and artist in her own right.

这个唱片公司引人注目的原因之一是由歌手和键盘手的DIANE同时身兼作曲和表演者。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。