时效

The effects of material's yield strength,shearing strain,rotating inertia and the substructures on vibration aging during the components resonance were investigated so as to get some theoretical support to vibration aging mechanism and practical technology research.

对构件共振时的屈服极限、剪切变形以及转动惯量和子结构的作用进行考察，以期为振动时效机理和工艺基础研究提供部分理论上的支持。

The following are the major work in this thesis which has been studied and still needs to be studied further in the future: 1 An improved adjoint variational method is developed, thus it can be applied to the LAGFD-WAM Wave Numerical Model for data assimilation; 2 A linear evolution equation of spectral perturbation is derived in order to analyze its increasing or decreasing mechanism.

本论文主要完成了以下几个方面的研究： 1）建立了推广形式的共轭变分同化方法，使之能够应用于LAGFD-WAM海浪数值模式； 2）导出了扰动谱线性演化方程，分析了扰动谱增长、衰减机制，考察了涌浪情况下扰动谱的持续时效问题及风浪情况下扰动的演变过程； 3）利用波谱共轭方程初步分析了同化模型中距离泛函的敏感性及敏感区域空间分布； 4）将推广的共轭变分方法应用于海浪谱能量平衡方程，建立了连续形式的海浪同化模型，特别是严格导出了风输入、破碎、底摩擦、波波非线性相互作用和波流相互作用各源函数的共轭源函数表示式； 5）分别进行了波谱层次上和有效波高层次上的同化试验，并对数值结果进行了分析。

In the course of FEM model building, tensile test experiment is taken to work out the real stress-strain curve. Ring compress test is also done in this paper, through which the friction coefficient is worked out and the friction mechanism and relevant friction model for tube stagger spinning is studied. The experiments ensured the veracity and reliability of the FEM modeling.

建模过程中，通过材料拉伸试验测定了旋压材料00Ni12Cr5Mo4TiAlV时效钢的真实应力应变曲线；利用圆环镦粗试验测定了材料在不同润滑状态下的摩擦系数，并对强力旋压的摩擦性质和摩擦模型的选择进行了研究，确保了建模关键参数的准确性和可靠性。

Objectively, the system of positive prescription might cover the fixed and unfixed assets, while the property used as financial sponsion and copyrights, etc might be excluded for the time being.

取得时效制度的本质根据科斯定理，在交易成本为零的条件下，资源的配置总可以达到最优化，资源的利用效率与制度设计无关。

There is no definite statute of limitations on appreciation.

目前还没有确切的追诉时效赞赏。

One of the samples is thin-film UBM bump.

所以使用的热时效温度为170℃。

This exception was found in the person o f a scholar, who, although no relation, bore the same Christian and surname as myself;-- a circumstance, in fact, little remarkable; for, notwithstanding a noble descent, mine was one of those everyday appellations which seem, by pre scriptive right, to have been, time out of mind, the common property of the mo b.

这就是一个跟我同名同姓的学生，虽然我们并没有沾亲带故；其实倒也不稀奇；尽管我出身贵族，我的姓名却很普通呢，根据时效权利，看来远在古时，就成了平民百姓的共有财富。

The company spirit of "customer is God, security, timeliness first" corporate purposes: low prices!

公司本着"客户就是上帝，安全时效第一"的企业宗旨：价格低！

On the basis of this equation, transformation kinetics curves corresponding to 5% and 50% transformation were established.

Cu-2.37Ni-0.58Si-0.39Cr合金在550℃的高温时效时，合金仍能保持较高的硬度。

Both the equation of phase transformation kinetics and the electrical conductivity equation were obtained.

确定该温度下时效的相变动力学方程及导电率方程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。