管下的

It is found that the former provide more uneven circular stress state than the latter after comparing the circular stresses both of intrados and extrados,which extrados stress is large and intrados stress is small.That is confirmed by the results of experiment that the practical burst pressure...

结论认为，内压作用下的弯管结构属于有力矩旋转壳，整体环壳第二弯曲半径由外拱区的正半径变化为内拱区的负半径，引起应力性质的变化，只考虑薄膜应力的弯管内压爆破理论存在不安全的因素。

For the two-phase flow section, the homogeneous model was applied. The fundamental equations such as the conservation of mass, the conservation of energy, and the conservation of momentum were applied to the every section.

采用该关系式可以准确的计算不同结构的节流短管，在各种运行工况下的流量，这为跨临界CO〓系统的设计提供了更为准确的节流机构模型，是本文研究内容的创新点之一。

Through the experimental study of steel bar passed through joint of gangue concrete filled steel tube, the deforming process and the failure patterns were analyzed. Based on the experimental results, the hysteretic curves, rebar and steel tube have been depicted.

对钢筋贯通式钢管煤矸石混凝土节点在低周往复荷载作用下的试验测试，得出梁端的力和位移的滞回曲线、钢筋的变形曲线以及节点区管壁的变形，分析试件的延性和耗能能力。

The numerical results under different methods, especially the simulation of recirculation region and reattachment length were carefully checked and compared.

比较不同修正方法下的圆管湍流计算结果，尤其是回流区域和再附着长度的模拟结果表明：变模型常数的κ-ε模型有效地的增加了近壁区域的湍能耗散率，使再附着长度的计算结果更接近于实验结果。

Several profile suction pipes with different double slots are developed and applied to spin cotton yarns of same fineness. Though comparing the structure and performance of this cotton yarn with that of yarns by the compact spinning or the Siro spinning, the advantages of compact Siro spinning are further indicated.

用自行研制的具有不同吸风双槽的紧密赛络纺吸风管分别纺制相同线密度的棉纱，并与相同工艺条件下的紧密纺和赛络纺纱线就纱线结构与性能进行比较分析，进一步说明紧密赛络纺纱工艺的优越性。

Results In all these cases, there are 83 cases origin from mucous membrane which include inflammation, tumor and anabrosis; 24 cases origin below mucous membrane which include interstitialoma, lymphoma and scleroderma;38 cases mainly changed in the shape, structure and position of organs which include hiatus hernia, Oblique inguinal hernia, diverticulum, malrotation of intestine and megacolon; 29 cases mainly changed in the power and function of organs which include functional disorder of esophagus, mesentery-compressed syndrome funtional disorder of small intestine and irritable colon; 17 cases' performance caused by the factor outside intestinal canal which include mesentery shift, stomach shift and small intestine shift, and other cases which include fistula between esophagus and mediastinum, rectovaginal fistula, foreign body in esophagus and small intestine ascariasis.

结果：197例患者中，源于黏膜的病变83例，源于黏膜下的病变24例（包括间质瘤、淋巴瘤、硬皮病），以器官形态、结构、位置改变为主的病变38例（包括食管裂孔疝、腹股沟斜疝、憩室、肠旋转不良、巨结肠），以器官动力、功能改变为主的病变29例（包括食管功能紊乱、肠系膜压迫综合征、小肠功能紊乱、结肠过敏），因管腔外因素的影响而引起的改变17例（包括食管移位、胃移位、小肠移位），其他病变6例（包括食管纵隔瘘、直肠阴道瘘、食管异物、小肠蛔虫症）。

In addition this study suggested that the wheat variety 98-10-30 and Batis had the same resistance when no aphids fed on them. However, the variety 98-10-30 had better resistance for S. graminum, and the variety Batis had better resistance for S. avenae when they were fed by aphids. The variety Amigo had better resistance for S. graminum under all situations.

同时明确了3个品种对两种蚜虫的抗性状况，即在前期无蚜虫危害时，品种98-10-30和Batis对两种麦蚜的抗性相当；在前期有麦蚜危害时，品种98-10-30对麦二叉蚜的抗性较好，而品种Batis对麦长管蚜的抗性较好；品种Amigo无论在任何处理下均对麦二叉蚜的抗性较好。

In this paper,a series of parameters as aperture、surface-area ratio to particle mass、hole-volume of pyrite (FeS2) particle,and the release characteristic of sulfur before reaction and under different temperature of drop-tube furnace were measured using ASAP2000 instrument from Micromeritics Co. USA with isothermal-absorption method. The configuration of FeS2 and its reaction products were summarized from the experiments.

采用美国Micromeritics公司的ASAP2000型比表面孔容测定仪，用等温吸附法，对硫铁矿(FeS2)在反应前及一维沉降管炉不同炉温条件下的孔径、比表面积和孔容积等参数的变化特性及硫的释出规律进行了测定，得到了对FeS2及其反应产物形态的一定认识。

The purpose of this thesis is to use finite element software ANSYS to analyze the mechanical behavior of thin-walled SUS304 stainless steel tubes with elliptic-notched subjected to curvature-controlled symmetric cyclic bending. The mechanical behavior contains the relationship among curvature, bending moment and ovalization. There are two kinds of the elliptic-notch.

本研究是以有限元素分析软体ANSYS 分析SUS304 不锈钢椭圆形凹槽薄壁圆管承受对称曲度循环弯曲负载下的力学行为，其中力学行为包含有曲度、弯矩及椭圆化的相互关系，而椭圆凹槽分为两种，一种为固定凹槽的深度，并改变凹槽的宽度；另一种为固定凹槽的宽度，并改变凹槽的深度。

The whole PWM circuit contains two subcircuit, the front-end is PWM module that make up of the counter that based on nine MOSFET True-Single-Phase-Clock D flip-flop; the back-end is demodulated module, which is consist of a three order Chebyshev low-pass filter used trans-conductor capacitor. All the subcircuits are simulated. At last, an approving simulated result of the whole circuit is given too.

在调制部分，利用九管单相时钟D触发器构成计数器，并由此组成了脉冲宽度调制电路，同时给出了在典型温度下的仿真结果；在解调部分，介绍了低通滤波器从无源到有源的设计方法，设计了三阶切比雪夫低通跨导电容滤波器，同样给出了相应的仿真结果；最后，作为将脉冲宽度调制电路和滤波器作为整体电路，以脉冲调频波为输入进行了仿真，取得了令人满意的结果。

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。