变平

The paper studies the problem of controlling the planar positionand orientation of an autonomous surface vessel using two independent thrusters.

田玉平 ，李世华已知减执行器水面舰船系统不能由连续时不变反馈控制律镇定。

Result:all the cases were diagnosed as early anfh by x-ray film in 35 sites,stage i showed osteoporosis and osteosclerosis in 15 sites,stage ii showed osteosclerosis and cystic hyalomere in 20 sites.56 cases of early anfh were discovered by ct in 43 sites.stage i stelliform sign distortion and osteoporosis and osteosclerosis in 17 sites,stage ii showed meniscus sign was 26 sites.

结果：全部患者x线平片诊断早期anfh共35个部位，其中ⅰ期占15个，x线表现为骨质疏松及骨硬化；ii期20个，表现为骨硬化和囊状低密度区。ct发现早期anfh共43个部位，其中i期占17个，表现为组成骨小梁星芒结构消失，骨质疏松变和骨硬化；ii期26个，表现为囊状低密度区及骨硬化。

In order to minimize the paddy wagon cutting machine of strength, turning to wear an uneven surface car light is preferred, but to do so having regard to the distribution of the wall thickness of steel casing.

为了尽度减多囚车削变不败的轴颈板滞强度贬矮，车削时以不兵磨损不服表背车平为佳，但还要思考到配镶钢套的壁厚强度。

These waves, like the crest of an ocean wave, are surfaces on which the phase relationship is constant.

这些波，像海浪的浪峰，是平面的，在平面上相位关系恒定不变。

The shapes of the melting solid surface may be concave, convex or plane, while the perimeter of plane contact regions may be rectangular, circular, elliptical, parabolic and arc curve. The types of relative motion reviewed here are the movement of a solid PCM melting inside a heated capsule, the movement of a hot body through a melting solid medium, slide contact and rolling contact. The contact melting may be caused by temperature difference, pressure difference, friction and viscous heating. Finally, the research regions in the future are summarized.

内容包括各种形式的接触熔化，可归纳为：在接触形状上可以有凹、凸与平的面，而接触的周长可以是矩形、圆形、椭圆形、抛物线形与弧形曲线；相对运动的类型有固体相变材料在加热容器内熔化，加热体通过熔化固体介质的运动，滑动接触与滚、转动接触；引起接触熔化的原因有温差、压力差、摩擦与粘性热。

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

But it always had a rippling wave in it then, and now it seems smooth and straight.""

但她的头发那时总是鬈曲的，象波浪一样起伏的，现在好象变得又平又直了。""

Results:After 5 days of disposal of 8-MOP combined with ATRA or alone on Mc3 cells,the numbers of Mc3 cells are decreased,the division cell disappears,the rugosity of cells surface is changed into the flat shape,the extension dimension of Mc3 cells enlarge obviously.

结果：Mc3细胞经8-MOP与ATRA单独及联合应用处理5天以后，细胞数量减少，分裂细胞消失，细胞表面由折皱状改变为平铺状，细胞伸展面积明显变大。

Made it a snub nose.

改进了 把尖部变得短平而上翘

There are many blind structural traps inSide the Linngping syncline and in the steep areas of its two limbs.

梁平向斜内及两翼变陡部位发育众多的隐伏构造，向斜是气源区。

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。