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However, cold-roll forming is a complicated sheet and strip steel manufacturing method, the steel sheet own the characteristic of geometric nonlinearity, material nonlinearity and contact boundary nonlinear.

然而冷弯成型是一种复杂的板带深加工方法，金属板材在成型过程中存在着几何、材料和边界接触等多重非线性问题，而且影响成型过程的因素很多。

Dioxane and cyclohexane can make a small amount of disordered β-sheet and some βturn of CSL change into native β-sheet.

CSL分子的二级结构变化的程度与酶和有机溶剂作用的时间以及有机溶剂的极性强弱有密切关系。

The turn speed is measured with an external hall probe and the oscilloscope, this give me a precise measurement, for instance when I insert an 6mm aluminum sheet I can see on the scope the pulse periode increased quickly, this shows that the speed of the motor drops also quickly due to the eddy currents induced in the aluminum sheet.....

转速度是衡量一个外部霍尔探头和示波器，这给我一个精确的测量，例如，当我插入一个6mm的铝板，我可以看到的范围脉搏 periode迅速上升，这表明速度电机也下降很快，由于涡电流致该铝板。。。。。。

Four-node degenerated shell element and rigid shell element are used in our FEM model.Updated Lagrange formulation and rate form constitutive equation are adopted to solve the problem of large strain and large rotation in sheet forming process.Sheet metal material property is described by plastic anisotropy yielding model and isotropic hardening model.Master surface-slave surface contact model is used to define the contact between tools and blank.Contact constraints are enforced with a kinematic algorithm and friction stress is computed by Coulomb friction law.Dynamic relaxation method is used to treat springback after forming stroke.

四结点蜕化壳单元和刚体壳单元分别用来建立板和模具的有限元模型；更新Lagrange法和速率型本构关系被用来处理板料变形中的大应变和大转动；材料模型采用塑性各向异性屈服与等向强化模型；通过主从面模型定义板料和模具的接触，接触算法采用运动约束法，摩擦力用库仓定律计算；并利用动力松弛法对回弹过程进行了计算。

The double sheet bend is more secure than the single sheet bend and is used when there is a great difference in the size of the rope.

双接绳结比单接绳结更为安全，用于联结粗细差异较大的两条绳索。

The electron microscope showed that in the screened sheet, only long fibers interweaved in a crisscross fashion, while in the unscreened sheet, fines fill up the textile fibers, which helped to increase the bonds of long fibers.

扫描电镜显示筛分后所成纸页中只有长纤维纵横交错，而未经筛分的纸页中细小纤维填充在长纤维所交织组成的网络空穴里，有利于纤维间的结合。

LTCM's balance sheet assets were leverage thirtyfold to $125 billion, then tenfold more by off-balance sheet transactions for a total valuation of around $1 trillion - or too big to fail.

长期资本管理公司的资产负债表的资产杠杆thirtyfold到1250亿美元，那么10倍，更由小康资产负债表外交易，总估价约1万亿美元-过大或失败。

LTCM's balance sheet assets were leverage thirtyfold to $125 billion, then tenfold more by off-balance sheet transactions for a total valuation of around $1 trillion - or too big to fail.

长期资本管理公司的资产负债表的资产杠杆thirtyfold到1250亿美元，那麼10倍，更由小康资产负债表外交易，总估价约1万亿美元-过大或失败。

This embodiment will illustrate that the present invention of the (poly trimethylene terephthalate) PTT laminated film performs better than its PET counterpart in terms of vapor impermeability, flexibility and warpage; its vapor impermeability is about equal to a TPT back sheet, while flexibility and warpage are better than TPT back sheet.

本实施例说明本发明聚对苯二甲酸丙二醇酯薄膜复合成的叠层膜的抗水汽渗透性、挠性和翘曲度优于多层聚对苯二甲酸乙二醇酯薄膜复合形成的叠层膜，抗水汽渗透性与TPT背板基本相当，挠性和翘曲度优于TPT背板。

Be aimed at existing sheet piece the inadequacy that institute of machine experiment plant exists, be united in wedlock be opposite in education at present odd the effective demand of a machine experiment device, put forward to develop new-style sheet piece the train of thought of emulation system of machine experiment education.

针对现有单片机实验装置所存在的不足，并结合目前教学中对单片机实验装置的实际需求，提出开发了新型的单片机实验教学仿真系统的思路。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。