watcher/audience/observer/onlooker/spectator.导航词义：观看者

1. watcher:n. 观察者.指因爱好或工作而观察某人、某事物的人。

More than ten thousand bird watchers visit annually.

每年有万余名观鸟者到访。

Where is the fire watcher?

火灾警戒员在哪里？

At that moment, the watchers became strangely quiet.

在那个时刻，那些观察家变得出奇地安静。

2. audience:n. 观众，听众.指戏剧、电影等的观众或演讲、音乐（会）等的听众，为集合名词；作主语时，若强调整体则其谓语动词用单数形式，若强调多个成员则其谓语动词用复数形式。

The audience was enormous.

观众人很多。

The audience were greatly moved by his words.

听了他的话，观众们很感动。

The performance caused a roar of laughter in the audience.

表演引起了观众的哄堂大笑。

His lecture drew a large audience.

他的讲座吸引了一大批听众。

3. observer:n. 观察者，观察员.指对某些事件、局势、事物等进行长期或定期观察的人，这些人被视为相关方面的专家。

conomic/political observers

经济观察家/政治观察员

The observer should take full notes on the atmospheric conditions.

观测者应对大气状况作详细记录。

An acute observer usually sees the essence of things at first sight.

敏锐的观察家通常一眼即可看出事物的本质。

4. onlooker:n. 旁观者，观看者.指只在一旁静观事件发生或事态发展而不介入其中的人。

Onlookers gathered around the scene of the accident.

旁观者围聚在事故现场。

Her manner is that of an onlooker.

她采取的是一种旁观者的态度。

Some onlookers joined the marching demonstrators.

一些旁观的人加入了游行示威的队伍。

5. spectator:n. 观众，观看者.尤指体育赛事的观众，也指某些公共活动（如演出、游行等）的观看者。

About 10,000 spectators were watching the game.

约有1万名观众在观看比赛。

Thousands of spectators came to the city for the horse race.

数以千计的观众来到这座城市观看赛马。

The policeman asked the spectators to stand back.

警察要观看者退后。

全部

1·The talks took place in the presence of a diplomatic observer.

会谈是在一位外交观察家在场的情况下进行的。《柯林斯英汉双解大词典》

2·The current sole superpower is far from being a disinterested observer.

当前惟一的超级大国远非一个公正的观察者。《柯林斯英汉双解大词典》

3·The president suggested that a UN observer should attend the conference.

大会主席建议应该有一名联合国观察员参加该会议。《柯林斯英汉双解大词典》

4·What does this observer ab extra represent?

这置身局外的观察者代表了什么？

5·The teacher's role is more of a coach or observer.

教师的角色更像是一个教练或观察者。

6·The idea seems promising, and Rosenberg is a perceptive observer.

这个想法看起来大有前途，Rosenberg 确实是一位有洞察力的观察者。

7·He is a good observer, accurate, patient and objective and applies logical thought to the observations he makes.

他是一个很好的观察者，准确、耐心和客观，并运用逻辑思维进行观察。

8·Frequently singing is part of a dance program, and again an observer has an opportunity to observe who is singing and the nature of the voices.

唱歌通常是舞蹈节目中的一部分，而观察者也有机会观察到是谁在唱歌以及其声音特质如何。

9·Geniuses, however they are defined, are but the peaks which stand out through the mist of history and are visible to the particular observer from his or her particular vantage point.

天才，无论如何定义，不过是在历史的迷雾中突出的山峰，是特定的观察者从其特定的有利位置所能看到的。

10·It's obvious even to the casual observer.

即便再马虎的人也能一眼看明白是怎么回事。《牛津词典》

观察者

1·The current sole superpower is far from being a disinterested observer.

当前惟一的超级大国远非一个公正的观察者。《柯林斯英汉双解大词典》

2·What does this observer ab extra represent?

这置身局外的观察者代表了什么？

3·The teacher's role is more of a coach or observer.

教师的角色更像是一个教练或观察者。

4·The idea seems promising, and Rosenberg is a perceptive observer.

这个想法看起来大有前途，Rosenberg 确实是一位有洞察力的观察者。

5·He is a good observer, accurate, patient and objective and applies logical thought to the observations he makes.

他是一个很好的观察者，准确、耐心和客观，并运用逻辑思维进行观察。

观测器

1·Oil smoothes the water surface, making it a better mirror: more sunlight is reflected back to the observer (the satellite) at the same angle as the incoming sunlight (right).

油污使水面变得平滑，让它更接近于一面镜子：更多的入射日光被反射回处于同一角度的观测器（卫星）。

2·The problem of designing an observer for bilinear multivariable systems in the presence of unknown disturbances is considered.

本文讨论了存在未知扰动情况下如何设计双线性多变量系统的观测器问题。

3·Also, the paper analyses how the observer and system work when the load inertia varies.

本文还分析了负载惯量变化时，观测器和系统的工作情况。

4·The control system utilizes a sliding mode observer for the generation of all controller feedback information by means of non-speed information, such as voltage, current and parameters of motor.

利用非速度信息，如：电机的电压、电流及电机本身参数，通过滑模观测器产生控制器所需的速度反馈信息。

5·A sliding mode observer is developed to estimate the rotor position and speed of switched reluctance motors (SRM) based on inductance model of SRM in this paper.

提出了一个基于开关磁阻电机电感模型的滑动模型观测器来估计电机的位置和速度。

观测者

1·This results in a notification message being sent to each observer, informing them that the subject has changed.

结果将以消息通知的形式发送给每个观测者，告知他们这个主题已经变化。

2·During each phase, any element along the path can be registered as an observer of the event, and can thus trigger an event handler.

每个阶段中，路径中的任何元素都可以注册为事件观测者，从而能够触发事件处理程序。

3·Think of the pitch of a siren on an ambulance, which goes from high to low as it passes the observer.

试想救护车上的报警器，经过观测者的时候，其音调会呈现出由高到低的变化。

4·If you need to set up an event observer, should you use the capture or bubbling phase? Here are a few guidelines.

如果需要设置事件观测者，应该使用捕获阶段还是冒泡阶段呢？

5·The observer is either specified through the ev: observer attribute, or the parent element.

观测者可以通过ev： observer属性指定，或者默认为父元素。

评论者

1·“This has been the week of silly proposals,” says one observer. “The question for the world is whether we will move on quickly to serious ones.

“这周的提议都太荒唐了”一位评论者称：“问题对于全球来说是我们是够能够尽快的处理严重的问题。”

2·The people concerning about art might be an artist, an art observer, an art researcher, a learner, a hobbyist or an art dealer etc. Art museum serves for the public;

在与美术有关联的受众中，又有美术创作者、美术评论者、美术研究者、美术学习者、美术爱好者、美术经营者等等。

(1)observer pattern观察者模式

(1)observer statusn. 观察员身份