查询词典 conic section

The authors took the Maocaojie section as a typical Permian section, which includes 13 grade 3 sequences that can be divided into two groups: the early craton basin sequences and the late interpolate rifted basin sequences.

以建始县茅草街二叠系剖面为典型研究剖面，将研究区二叠系划分为13个Ⅲ级层序，可分为早期克拉通盆地层序和晚期板内裂陷盆地层序两种类型。

The ground floor column"s axial compressive force is especially big in high-rise buildings and skyscrapers . If using RC column ,it will lead short-column and "fat-column;if adopting steel structure ,it may reduce section area sharping,but its capacity of bearing erosion is weak,especially fireproof performance is its fatal weakness;SRC may not only reduce section area effectively,but also save steel,without the weaknesses in bearing erosion and fire-resistant capacity.

高层超高层建筑的底层柱轴力特别大，如果采用钢筋混凝土柱，会出现短柱和胖柱现象；采用钢结构，可以大大减小截面面积，但钢结构的耐腐蚀性能差，尤其是耐火性能成为它的致命弱点；而型钢混凝土既可以有效减小截面尺寸，又可以节省钢材，还没有腐蚀性和耐火性差这些问题。

They fall into two parts in this book: section one is idiomatic patterns/expressions, while section two is figurative slangs.

值得指出的是，这只是同类话语是的一部分，不过是编者精心选择的一部分。

The straight section and the spiral section form a single continuous cable, not two sections spliced together.

直线段和螺旋截面形式单一连续的电缆，应不两段拼接在一起。

The straight section and the spiral section form a single continuous cable, not two sections spliced together.

直线段和螺旋段形成单根的连续光缆，而不是两段接合在一起。

D-Pantothenyl alcohol, also called ortho-vitamin 85, is an important nutrition suppled substance. It has been widely applied in the field such as medicine, cosmetic, foodstuff, feed additive, and so on. The preparation of D-pantothenyl alcohol and the optimization of key factor are discussed mainly in this paper. It mainly includes three section.In the first section, with formaldehyde, isobutyl aldehyde and diethyl oxalate as the starting materials, D-pantolactone is prepared via three steps including condensation, catalytic hydrogenation and physical resolution. The specific rotatory power of the product is consistent with imported product.

D-泛醇，俗称原维生素B_5，属维生素B旋类营养增补剂，广泛应用于医药、化妆品、食品、饲料等领域，本文着重探讨了其制备及关键因素的优化，主要内容可分三部分：第一是D-泛内酯的制备，先以甲醛、异丁醛和草酸二乙酯为起始原料合成酮基泛内酯，再经催化氢化得到DL-泛内酯，然后通过物理拆分获得D-泛内酯，得到产物的比旋光度与进口产品基本一致。

At last, the research test the logistic regression model with sample dada. The results are as the following:(1)Based on the time series dada, the financial early-warning model contains more crucial information reflecting the dada characters, so it can avoid the obvious logic problem in the other analysis such as single section dada and multi-section dada analysis. The test result indicate that the new model have a more accuracy than others.(2) the research adopt the global principal component analysis to settle the problem of multiple collinearity, so the model would be more normative and precise.(3)the early-warning model uses the backward method to regress, so it gets a terser model of only five variables, but it still has a precise forecasting ability.

通过本文研究说明：（1）建立以时序数据为基础的财务危机预警模型，提高了样本中重要财务趋势特征的信息含量，从而克服了国内外单截面及多重截面分析中普遍存在的明显逻辑问题，检验结果表明，利用时序数据建立的logistic财务危机判别模型较截面数据基础模型的判别准确率要高；（2）采用全局主成份分析方法解决了模型中因子间的多重共线性问题，这一处理使logistic回归方法应用的规范度和严谨度得到明显改善；（3）我们采用向后逐步回归的办法进行回归，使模型大大得到了简化，其中只包含五个自变量，但是它的整体预测准确性却仍然比较高，使模型更具有实用性。

Section numbers and section titles have been set forth herein for convenience only; they shall not be co trued to limit or extend the meaning of any part of this Guaranty.

于此列出的条款序号和标题仅为了方便的目的而使用，不得被解释为对本担保书任何部分之含义的限缩或者扩展。

The objectives of this paper were to investigate the simulation and design of continuous multiple-station rolling forming process for a U-Section Steel Bar by CAE software-DEFORMTM Due to the limitation of elements number using a short strip 120mm went through all the stations to simulate the real continuous rolling forming on factory The roller gap was fixed as 0 30mm roll speed was 20 rad/sec and progressive angles were all equal for each rolling process which were the formed angle divided by by the number of station Three rolling processes were selected with 6 9 and 12 stations respectively During simulation processes two cases occurred Case A the strip was through a single station Case B the strip across two stations Because the strip laterals side was stretched and twisted during the process The model of case B closer to the practical process than case A and the calculated stress and strain on the tip of U section for case A were lower than these for case B by up to 15% From the result of case B for each process the stress for 12-station process was smallest 9-station process second and 6-station process next Because less-station can save larger cost and forming time but the bigger stress and strain for 6-station caused wrinkles on lateral sides not found on 9-station and 12-station Therefore 9-station process was a more suitable design than 12-station process smaller stretched and twisted and stress The progressive angles for 12-station was 7 5?

本文主要是以DEFORMTM有限元素软体模拟U型钢片连续道次成型与单一道次成型以确认单一道次模拟的是否可取代连续道次模拟之研究。因DEFORMTM 软体对於网格元素上的限制故使用较短素材120mm通过所有的成型站以模拟工厂实际连续成形方法。辊轮间隙固定为0 3mm；辊轮转速为20 rad/sec；弯曲角度的方法为将成型角度平均除以成型站数。有三种辊轮成型方式被选择分别为6站，9站，与12站。在模拟的过程中有两种现象会产生 Case A，素材通过单一成型站。Case B，素材会通过两个成型站。因为在模拟过程中素材的两端会有拉应力与扭力。Case B的模拟比Case A像实际的制程，并计算应力与应变在U型断面的Tip部中可发现Case A比Case B低约15%。从Case B的每站的结果可以得知，12站的成型应力最小，9站次之，6站最后。

C The passenger is offered accommodations or is seated in a section of the aircraft other than that specified on the ticket at no extra charge, except that a passenger seated in a section for which a lower fare is charged shall be entitled to an appropriate refund; or

c当乘客被提供了住宿接待或者被安排在除了机票上指定的那架飞机以外的飞机上，且没有额外的支付费用时（如果安排的那架飞机运费比机票上指定的那种低的话，乘客可以要求航空公司返还适当差价）；或者

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。