改变

Firstly, the 3D solid model of the analyzed object is built directly in the FEM software ANSYS 8.0 without using other CAD software. The influence of the side sizes of solid elements on computing results and the influence of coupling ways between different parts on the modal parameters are researched by simply modeling. And a new connecting method about joints in ANSYS is proposed and applied to finite element modeling of the test-bed for spindle system. Furthermore, several different computing techniques for modal parameters extraction are compared in solving the finite element model of spindle system test-bed. Many modal solutions are also done to achieve the relationships between the whole or part stiffness value and computed modal parameters. The laws about joint rigid parameters" influences on modal parameters are discussed by means of altering their values for conjoint parts. And by changing local rigid parameter values, the different location selections" influence on computed modal parameters is also studied.

本文通过使用ANSYS 8.0软件直接建立研究对象的实体结构模型，而没有借助其他的CAD软件；通过构建简单的模型研究实体单元边长大小对计算结果的影响，部件之间不同的联结方式对模态参数的影响，探讨在ANSYS中实现结合部的方法，提出一种新的联结方法，并建立主轴系统试验台的有限元模型；对建立的主轴系统试验台有限元模型求解，比较几种不同模态提取方法；通过改变结合部联结单元的刚度参数进行的计算，寻找联结刚度对模态参数变化的影响规律；改变局部联结单元的刚度参数，研究刚度值位置差异对计算模态参数的影响。

Perhaps it is our ivilized way to moderating,if not preventing,change.

也许，这是我们在以一种文明的方式去缓和改变，如果这不是阻碍改变的话。

IF I CAN NOT CHANGE MY FATE, I WILL MODIFY MY ATTITUDE.

如果我无法改变我的命运，我会改变我的态度。

The multimeter advantage is the ability to monitor the rate of change of the sample being tested, or change direction.

这个万用表的优势是能够监视被测试样本的改变率或者改变方向。

Alter what is changeable ,and accept what is mutable.

该变能改变的，接受不能改变的。

Remember what should be remembered, and forget what should be forgotten.alter what is changeable, and accept what is mutable.

记住该记住的，忘记该忘记的。改变能改变的，接受不能最好听的网名是什么的。

The change of person seems natural and true to the narrative, but there is no change of language.

改变人看来，自然和真实的叙述，但不会有任何改变的语言。

There may be more extra-landm ark noise associated with the measurement of angle NAPg than with the other thre e angles.Since change in SNA is affected by Nasion horizontal displacement,its r epresentation of Point A displacement was questionable.

除了NAPg，其它3个角度的变化基本能反映出颌骨及牙齿在矢状方向的位置改变，但SNA角的变化在一定程度上同时受N点水平向位移的影响，使其反映A点水平向位置改变的可靠性受到影响。

If you get a Negative number, and your gut tells you the change is NOT GOOD, decide not to change.

如果你得到一个负数，你的直觉在告诉你，改变不好，决定别改变。

Patients were NEVA normal in 30 vosculogenic ED patients and in 4 were NEVA abnormal 28 non-vasculogenic ED patients.

在非血管组、动脉组、静脉组中有统计学差异的NEVA参数为：每晚勃起次数、勃起持续时间、血容量改变、横截面改变。

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％。