观察器对象订阅那些报告所监视实体中任何状态更改的事件，然后基于那些事件中的信息更新自己的状态。
The observer object subscribes to events that report any state changes in the monitored entity, and then updates its own state based on information in those events.
虽然我们可以通过启用系统监视器来简单观察内存的使用量，但是它不会告诉我们比整个系统内存状态更有用的任何内容。
While we can simply watch the amount of memory used by a script by turning the system monitor on, it will not tell us anything more useful than the status of the entire system memory.
通过忆阻器的电流可以改变它的电阻状态，但是在实际环境中观察随之而来的材料改变是一个挑战。
Electrical charge flowing through a memristor changes the resistance state of the device, but actually observing the corresponding material changes has been a challenge.
利用高通滤波器进行滤波，观察到晶体的透射光的衍射效率与外加电压成线性关系，并与电场方向和晶体电正极面之相对取向有关，但是不依赖于入射光的偏振状态。
It was observed that the diffraction efficiency of the transmitted light shows a linear dependence on the applied voltage, but is independent of the polarization of the incident light.
结构健康监测过程是通过传感器阵列周期采集动态响应数据来观察结构状态。
The SHM process involves the observation of a system over time using periodically sampled dynamic response measurements from an array of sensors.
面部表情是一种有效的情绪显示器，通过观察一个人的面部表情，可以了解此人现在的情绪状态。
Facial expressions are significant biological indicators of emotion. We can realize one's emotion state according to the facial expression.
观察到了此类激光器的锁频状态，其绕数按照法瑞树的规则组成魔梯。
Frequency-locked states with their winding numbers which form the devil's staircase are observed in this kind of lasers.
观察到了此类激光器的锁频状态，其绕数按照法瑞树的规则组成魔梯。
Frequency-locked states with their winding numbers which form the devil's staircase are observed in this kind of lasers.
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