放大

Depending on the character of Lamb wave propagation , thedamage scat tering signals were time reversed and reemit ted to the damage , and then they will arrive at the damage synchronously so that the damage scat tering signal caught again will be amplified. Details about the time reversal amplifying process were analyzed and given. Based on the focalization ability of time reversal theory to the wave origin , the wave propagation was rebuilt by an image method which displays the damage as the focusing point .

根据信号传播自身的特性，研究采用时间反转聚焦方法使损伤散射信号能量叠加放大，从而提高信号的信噪比，分析给出了具体的损伤信号时间反转聚焦增强过程；利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。

With the Smart Sketch I just need to draw one mask, refractor version, and the other size can just be done by scale the image.

在Smart Sketch我只需要绘制一个面具，其他大小可以简单的放大缩小便成。

The present paper attempts to examine the above "selective regular amplification" phenomenon in terms of numerical simulations based on the phase-field model.

本文旨在对上述枝晶生长在小振幅外信号源作用下的"选择性规则化放大"现象应用相场模型进行数值模拟研究。

Based on the matrix analysis, the error sources of the measurement accuracy are analyzed, and the maximum relative error of this mathematical model is estimated.

实验数据表明，该方法将飞行器的姿态变化进行了有效放大，在一定转动范围内，对于姿态参数的测量误差不超过3′。

The input signal of the intermediate relay is the coil s make-and-break, and the output signal is the action of the contact.

中间继电器一种用来增加控制电路中的信号数量或将信号放大的控制类低压继电器。

MSP430F169 microcontroller was the core components of control and measurement function of an electromagnetic relay characteristic parameter tester. The tester also included DC power module, power amplifier module, constant current source module, keys, and digital tube display module. The tester could test the data of 943-1C-12DS electromagnetic relays including the minimum pull-in voltage, maximum release voltage, relay coil voltage rating when the pull-contact time, release time as well as the contact value of the contact resistance. The system could complete automatic measurement parameters to achieve all the basic requirements of design. And all of the test data was displayed through the 74HC573 digital tube.

摘 要：以MSP430F169单片机作为控制和测量的核心部件，辅以直流稳压电源模块、功率放大电路模块、恒流源模块、按键和数码管显示模块等组成一个电磁式继电器特性参数测试仪，完成对943-1C-12DS电磁式继电器最小吸合电压、最大释放电压、继电器线圈电压为额定值时的触点吸合时间、释放时间以及触点接触电阻值的测试，该系统能够实现成套参数自动测量，所有测试数据通过74HC573数码管进行显示。

These aspects are very important because if there are problems related to them, this can create extreme annoyance and renouncement of the possible visitors.

只要你申请网站主办提供商应考虑几个方面诸如时间花上一段时间负荷或放大方面是很重要的，因为如果有有关问题对他们而言，这会造成极大烦扰，放弃可能参观者。

To customize the Rent Roll Report: Click on the small magnifying glass to the right of the Rent Roll option.

定制租金卷物报告：按下对权利的小放大玻璃租金卷选项。

Like to repeat the success that magnifies oneself are experienced even to differ with leader of a lot of business, plum Yan Hong is told those who do poineering work is difficult, talk the roundabout way that live, tell poineering success to be hard to go up blue sky.

和很多商业领袖喜欢重复甚至放大自己经历的成功不同，李彦宏讲创业之难，讲走过的弯路，讲创业成功难于上青天。

In this experiment, repetitiously intermittent bead-to-bead transfer of cell was chosen to simulate the close and continuous process. During the transfer of 1:4 expansion (the ratio of fresh and confluent microcarriers) for 4 times, it was found that cell density remained stable, while the HA titer showed a slight decrease probably due to the bad culture environments.

由于受实验条件的限制，本实验采用多次间歇加料的方式来模拟连续培养过程，经过4次新老载体1：4比例的放大培养，发现细胞密度可以保持稳定，而病毒产量有轻微下降的趋势，这可能是由于病毒生长环境比较恶劣的缘故。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。