衰减

In Chapter 4, in the two-dimensional euclidean space case, the identification problem for the constantly attenuated exponential Radon transform is further studied, and some theoretical and systematical results are obtained.

第四章在二维欧氏空间情形下，我们对常衰减指数型Radon变换的识别问题进行了更深入的讨论，获得了较系统而又深刻的结果。

During reliability test, the degradation of shear strength is observed for both eutectic and lead free solder balls.

在可靠性加速试验过程中，无铅和有铅两种焊球的推力数值都有不同程度的衰减。

These are discussed in terms of the edge states and the evanescent modes.

我们也会讨论边缘态跟衰减态的现象。

So we use another method which attenuates the gravity and expel forces by a function of simulation time.

因此，我们用另一种方法，衰减的严重性和被驱逐的仿真时间的函数力量。

However, we also show that a similar construction does notlead to exponential decay.

进一步，我们将说明类似的构造方法不可能得到指数衰减。

You may recognise this as an exponential decay graph.

你可以看出这是一个指数的衰减图。

It is easy to show, for an exponential decay, that the uncertainty in the life time is also z

很容易证明，对于指数衰减来说，寿命的不确定性也是z。

Note the exponential decay in the current using both a positive and a negative test voltage.

注意在使用正、负测试电压时电流的指数衰减情况。

This ensures that the impulse response will decay exponential with time.

这确定了脉冲响应将会随时间以指数形式衰减。

The pressure is seen to exhibit exponential decay.

压力被认为是展示指数衰减。

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％。