旋出

Based on the theory of Sequence Stratigraphy and the systematically analysis of strata which was closely focused on Lithostratigraphy, Biostratigraphy, Paleoecology Event Stratigraphy and Sequence Stratigraphy, four long-term base-level cycles can be recognized in the Mesozoic, each long-term base-level cycles can be further divided into intermediate-term to short-term base-level cycle. Eight intermediate-term base-level cycles are recognized in Mesozoic; Cenozoic can be divided into two structural base-level cycles, and can be further divided into seven long-term baselevel cycles.

应用层序地层学理论，在详细的岩石地层、生物地层、生态地层、事件地层和层序地层为核心的综合地层研究基础上，将中生界划分为四个长期基准面旋回，每个长期基准面旋回内部又可进一步识别出更次一级的旋回，侏罗系内部共可识别出8个次级旋回；根据钻井层序地层与地震地层划分结果，将北缘地区新生界划分为两个构造基准面旋回，其内部又可进一步划分为7个长期基准面旋回。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

The monkey face hedging steering wheel, then with pit which turned on lathe a moment ago from the tapping is fixed.

28将猴子脸套进方向盘，然后用刚才旋出的大扁头自攻螺丝固定。

Turn the hollow bolt so that it is fixed on the bake cover or the flange plate.

安装后必须旋出空心螺栓锁紧在电机后端盖或法兰盘上。

Cycles were recognized in the field and Fischer plots were used to analyse the cyclic sequence. 3 third_order and 12 fourth_order sea level curves were differentiated. The 84 cycles are considered to be of a kind of Milankovitch rhythms formed by the eccentric variation of the earth.

在野外共划分出了84个旋回层，用Fischer图解对马家沟组的旋回层序进行了分析，共划分出3个三级旋回，12个四级旋回。84个旋回层可能是因地球偏心率变化而引起的米兰柯维奇旋回。

Cycles were recognized in the field and Fischer plots were used to analyse the cyclics equence. 3 third-order and 12 fourth_order sea level curves were differentiated. The 84 cycles are considered to be of a kind of Milankovitch rhythms formed by the eccentric variation of the earth.

在野外共划分出了84个旋回层，用Fischer图解对马家沟组的旋回层序进行了分析，共划分出3个三级旋回，12个四级旋回。84个旋回层可能是因地球偏心率变化而引起的米兰柯维奇旋回。

Turns on lathe steering wheel following pit and takes down the monkey face from the tapping.

旋出方向盘下面的大扁头自攻螺丝并取下猴子脸。

Screw out the screw plug of the oil pump, and insert a piece of iron wire into it to

6.5 应经常检查液压油，将油泵螺塞旋出，插入一段铁丝，抽出后看油的深度如果不够，就

Out the screw plug of the oil pump, and insert a piece of iron wire into it to check the oil

6.5 应经常检查液压油，将油泵螺塞旋出，插入一段铁丝，抽出后看油的深度如果小于25mm 就

Make sure not to damage socket threads when using metal lifting plug,screw the plug out of the socket after litfing.

如果用金属提升塞提吊电极，不得损伤接头孔内的螺纹。过后，应将提升塞旋出。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。