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In this paper,the advance of precision forging parts accuracy prediction technology is systematically illustrated in the aspects of part elastic deform ation,dies elastic deform ation,die wear,therm al expansion and shrinkage of part and die.

本文从成形件的弹性变形、模具的弹性变形、模具的磨损以及热胀冷缩几个方面综合论述了精锻产品精度预测技术的研究现状及存在的问题，并对其未来可能的发展趋势进行了分析和探讨。

Resin transfer molding mould was manufactured with bisphenol-A epoxide vinylester resin as matrix,poly as low shrinkage additive and glass fiber tricot as reinforcing material,according to the basic requirement of matrix resin of RTM mould.

根据树脂传递模塑模具对基体树脂的基本要求，选用双酚A环氧乙烯基酯树脂为基体，聚乙酸乙烯酯为低收缩添加剂，玻璃纤维经编织物为增强材料，并加入相应的助剂，制备了复合材料RTM模具。

The comparison with its mother Chinese tulip tree and father American tulip tree have been made The results show:(1)The air-dried density is 0.544g/cm3, the radial, tangential and volumetric shrinkage are respectively 5.06%、9.61% and 14.91%.(2)The longitudinal compress strength, MOR and MOE are respectively 42.1Mpa, 84.5MPa and 7.4GPa. Every value of physical and mechanical properties is between the Chinese tulip tree and the American tree.

结果表明：杂种鹅掌楸的气干密度为0.544g/cm3，径向、弦向和体积全干缩率分别为5.06%、9.61%和14.91%；主要强度指标顺纹抗压强度、抗弯强度及抗弯弹性模量分别为42.1Mpa、84.5MPa 和7.4GPa；各项物理力学性质均介于中国鹅掌楸和北美鹅掌楸之间。

The wavelet shrinkage method for denoising based on Stein's unbiased risk estimate is provided for signal processing in electrostatic detecting.

在静电探测系统中，获得的信号除目标信号外，还包含各种各样的干扰，包括人工干扰与自然干扰。

To explain the computable of correlated noise attenuation by wavelet analysis; to give adaptive wavelet shrinkage algorithm on basis of threshold. We discuss three thresholds'choice; namely eigenvalue, unbiased risk estimator and hitograph method. We give comesponding experiments'analysis and comparison. It shows that our method is reliable.

阐述了小波分析去相关噪声的可行性；给出了基于阀值的自适应小波收缩法，讨论了三种阀值的选取；论述了特征值法，无偏的风险估计与直方图法，给出了相应的实验分析与比较，说明了该方法是可行的。

The impacts of transverse and longitudinal shrinkage of welding seam on underframe positioning.

以及焊缝横向、纵向收缩对底架定位的影响。

Utilizing the equilibria of pull and press and the dispersion between placed and unplaced steel bar specimens, this paper put forward the shrinkage stress-time computing formula and elastic modulus-time computing formula of merchandise concrete that offered the reference for controlling merchandise concrete cracks.

利用拉压平衡和同条件下素商品混凝土试件和配筋商品混凝土试件的收缩差值，给出了商品混凝土时随收缩应力计算公式和以及商品混凝土时随弹性模量的计算公式，为控制商品混凝土收缩裂缝提供了依据。

Many factors can cause the degradation, shrinkage and vanishment of the oases, such as the rapid changes of some natural factors, radical changes of some social factors, or the interaction between natural and social factors.

造成人工绿洲的衰退、萎缩或消亡，往往有多种因素，但不外乎自然因素的急剧发作，社会人文因素的剧烈变异，或自然与人文因素的迭加共振。

Such as: how to better play to high-performance concrete properties; how to avoid temperature changes, shrinkage and creep of concrete, foundation, uneven settlement and so on; how to ensure that close up before the end of the vertical deflection of the cantilever 2 and the main beam axis deviation of the lateral shift does not exceed the permissible range; how to ensure that folded after the bridge linear positive; how to avoid the construction of the main beam and so there have been a big stress.

如何更好地发挥高性能混凝土性能；如何避免温度变化、混凝土收缩徐变、地基不均匀沉降等的影响；如何保证合拢前两悬臂端竖向挠度的偏差和主梁轴线的横向偏移不超过容许范围；如何保证合拢后的桥面线形良好；如何避免施工中主梁截面出现过大的应力等。

But when the concentrations were too low, micropatterns would have large shrinkage due to the volatilization of solvents.

但溶液浓度过稀时，由于大量溶剂的挥发，所制备的条纹会有较大的收缩率，这会给精确复制微结构带来困难。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失