后弯

Femal rats were ovariectomized to build the model of osteoporosis, and then treated with Chinese drugs and stilbestrol respectively for 3 months. The results showed that both Chinese drugs and stilbestrol prevented the BMD, RBS and BTV from further declining in osteoporotic rats; but could not raise the BMD, RBS and BTV that had declined.

用卵巢切除的方法建立大鼠骨质疏松模型，然后对模型分别给乙烯雌酚或中药治疗3个月后发现，乙烯雌酚或中药治疗可以阻止股骨密度，抗弯强度和胫骨骨小梁体积的下降，但两种药物均不能使已经下降的股骨密度、抗弯强度和胫骨骨小梁体积升高。

When the mould is dried and solidified, aluminum solution of about 700 ℃ is poured into the mould according to the process of ZCAST technique,and the syphon casting is successfully made.

针对美国Z Corp公司生产的快速原型ZCAST粉末价格昂贵的问题，采用自配制的质量百分比为4∶6的400目石膏粉ZP102和200目氧化铝粉的混合粉末，以弯管为研究对象，使用快速成型机成功打印出其模具零件，烘干、固化处理后，按照ZCAST技术的工艺流程，浇注700℃左右的铝合金溶液，成功铸造出弯管。

Analyzing the proved experiences of four kinds of end-bend models, and assuming a minor deviation, with the application of the aforementioned total pressure coefficient and deviation calculation model on the undesigning operating condition, numerical estimate is done on the characteristics change at designing rotating speed (n＝1. 0) after applying five various kinds of end-bend models.

总结了国内外有过成功经历的4种端弯模式，并且在小偏离假设下，应用上述非设计工况总压损失系数和落后角计算模型，对74A压气机采用5种不同的端弯模式后，在设计换算转速（n=1.0）下的特性改变情况进行了数值预测。

The results show that the density of glass, glass transition temperature and thermal expansion coefficient increase with the increase of yttria content, and the chemical durability decreases with the increase of yttria content. The bend strength of glass increases from 53.52 MPa to 109.65 MPa when 1.80% Y2O3 is added into glass. However, with the content of yttria further increases to 6.84%, the bend strength is suspended about 110 MPa. Y2O3 acting as network modifies in the structure and makes the island-shape network unit repolymerization by the bonding of Ge-O-Y because of the decrease of non-bridge oxygens and strengthening of glass network structure.

结果表明：该系统玻璃的密度、玻璃转变温度和热膨胀系数随氧化钇含量的增加而升高，玻璃的化学稳定性随氧化钇含量的增加而下降；在玻璃中加入1.80%氧化钇后，玻璃的抗弯强度值由53.52 MPa增至109.65 MPa；继续增大氧化钇的含量至6.84%时，玻璃的抗弯强度维持在110 MPa左右；氧化钇的加入减少玻璃网络结构中非桥氧数量，使孤立的岛状网络单元重新聚合，增强玻璃的网络结构。

This paper proceeded the flexural experiment respectively of two flexural strengthen beam by CFS, one compared reinforced concrete beam, and proceed sheared experiment research of two U style stirrups of CFS combined compacted sheared strengthen beam, one compared reinforced concrete beam. analyze and compare some working characters such as width of cracks, the deflection and ultimate moment of an unstrengthen compared beam, an initial strengthen beam and a beam strengthened after crack by compacting .

本文分别进行了2根粘贴碳纤维布受弯加固梁和1根钢筋混凝土对照梁的受弯试验研究及2根碳纤维布U形箍+压条受剪加固梁和1根钢筋混凝土对照梁的受剪试验研究，分析对比了对照梁、直接加固梁、压裂卸荷后再加固梁三者的挠度、裂缝、极限荷载等工作性能。

Elson Piquet's Williams had led for much of the afternoon, but with two laps remaining the sister Williams of Nigel Mansell lined him up coming out of Chapel. Cheered on by the partisan crowd, Mansell tucked up behind Piquet, feinted left and as the Brazilian moved to cover him threw his car up the inside into Stowe and grabbed the lead.

P驾驶的威廉姆斯在那个下午领先了大半场比赛，而还剩下最后两圈时，曼塞尔的另一辆威廉姆斯出Chapel弯后与NP相差无几，在主场观众的热情加油声中，曼塞尔靠近NP的车尾，假装往左-巴西人马上调转方向挡住他-将车挤进了Stowe弯的内线并夺取了第一的位置。

After a few deep breaths, you might become aware that you are scrunching your neck and compressing your spine while bending toward your iron.

做几回后你弯下腰来熨衣服，也许感觉弯颈，下压脊椎。

It mainly contains the following things. At first, I bring for the way of anchoring two cementing slabs next to by using dog irons made of iron bars and then cover the surface of the road using bituminous concrete. After analyzing the feasibility of this method by using the famous and popular use soft ware ASYS, the results show the magnitude of the temperature stresses on the limited mat coat of the road has nothing to do with the length of the concrete slabs after covering it with bituminous concrete. Meanwhile, the relative horizontal shifting, the flexural-tensile strain, and the vertical shearing stress of the slabs next to it becomes the least after anchoring them with dog irons made of iron. Therefore it proves that it really works to use this method to prevent and slow down the speed of the reflection cracks in the bituminous concrete skin coat over the old road.

首先，提出采用钢筋马钉锚固相邻水泥混凝土板后再进行沥青混凝土罩面的新方法；采用国际著名的通用有限元软件ANSYS对其可行性进行了分析，结果表明在有限尺寸的板上进行沥青混凝土罩面后，罩面结构的温度应力的大小与板的长度几乎没有关系，同时采用钢筋马钉锚固相邻旧水泥混凝土板后，可以明显地减小相邻板的相对水平位移、接缝处罩面层底部的弯拉应变和垂直剪应变，从而表明该法对防止或减缓旧水泥混凝土路面上沥青混凝土罩面层的反射裂缝是确实可行的。

Then press the upper plate down in 1 second in standard temperature until to the given position.

待恢复到室温后观察弯折处是否断裂，或用 6 倍放大镜观察试件弯折处有无裂纹。

The numerical analysis shows that the forward-curved impeller can make full use of the capability of fitting the negative incidence range and its internal flow performance is better than that of the baseline, and the forward-curved swept-back impeller can improve effectively the serious separation near the shroud and hub occurred in the baseline.

数值分析表明：前弯叶轮充分利用了其对负冲角工况的适应能力，内流特性优于常规设计的近似径向进口型线叶轮；而进一步发展的前弯后掠叶轮明显改善了原型叶轮轮壳和轮毂处严重分离的现象。

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。