demonstrator

noun

1. （集会或游行的）示威者
   a person who takes part in a public meeting or march in order to protest against sb/sth or to show support for sb/sth
2. 示范者；演示者
   a person whose job is to show or explain how sth works or is done

1. N-COUNT 示威者;示威游行（或集会）者
   Demonstrators are people who are marching or gathering somewhere to show their opposition to something or their support for something.
   1. I saw the police using tear gas to try and break up a crowd of demonstrators.
      我看见警察正试图用催泪弹驱散一群示威者。
2. 示范者;演示者
   A demonstrator is a person who shows people how something works or how to do something.
3. N-COUNT 样品;试用品
   A demonstrator is an item for sale that customers can use and test so they can decide whether they want to buy it.
   1. Saab dealers are currently giving away unaccompanied 24-hour test drives in posh demonstrator models.
      萨博汽车的经销商目前正推出高档样品车无人陪同的 24 小时试驾活动。

1. I saw the police using tear gas to try and break up a crowd of demonstrators.
   我看见警察正试图用催泪弹驱散一群示威者。
2. Saab dealers are currently giving away unaccompanied 24-hour test drives in posh demonstrator models.
   萨博汽车的经销商目前正推出高档样品车无人陪同的24小时试驾活动。
3. Marshals tried to wrestle the demonstrator out of the room.
   执法人员试图将这名示威者从屋子里拖出去。
4. The x-47b is a technology demonstrator that will never see active service.
   X-47B像是一个美国尖端技术的展示平台，这架无人机不需要任何的人工干预。
5. The demonstrator comes with a set of sample files for different scenarios, such as a Loan Approval or Purchase Order process.
   验证器随着不同情景的一套样例文档而产生，例如贷款批准或购买订单流程。
6. "There you are-like a knife through butter," said the demonstrator as the powered shovel swung back with its load. Blade-to-handle ratio. Does the blade look proportional to the handle?
   当装满泥土的挖土机转回来时，操作示范员说：你瞧，就像拿刀子切黄油块一样，十分容易。刀与刀柄的比例－刀与刀柄成比例吗？
7. The aircraft may be a technology demonstrator or a prototype for a mass production fighter aircraft.
   这架飞机也许是技术验证机或者大规模生产型号的原型机。
8. Then, this paper introduces the application of COMS in statistical analysis, voice operation demonstrator and phonetic analysis.
   接着，介绍了COMS在统计分析、语音合成和语音分析等方面的应用。
9. The concept is considered by the Italian carmaker as a technological demonstrator that will inspire and influence all the future model line-up.
   这个概念来自于意大利的汽车设计师，这些概念作为将激励和影响未来形式的标准。
10. The demonstrator had charged that the project was unsafe in the densely populated area, would create thermal pollution in the bay, and had no acceptable means for disposing of its radioactive wasters.
    示范者已经公开指责计画是不安全的在浓密人口稠密的区域中，会在海湾中产生热的污染，而且为解决它的放射性的铸损没有可接受的方法。
11. We've got a few more steps before it becomes a full aircraft program, but I do envision a demonstrator or'X'plane in the next couple of years. We're going to need that to establish credibility.
    在它成为一个全面的飞机计划以前，我们还有很多步的研究要做，但我能预见到几年后会有一架展示飞机或“X”飞机出现，让我们可以建立起可信度。
12. This paper introduces the newly-explored multi-functional wave-motion demonstrator and its application from three aspects of the structure, the principle and the use of the instrument.
    本文从仪器的结构、原理及使用三方面介绍了最新研制的多功能波动演示仪及其应用。
13. One top European official, ( French, not British) groaned recently that: The average anti-capitalist demonstrator in London has more understanding of how markets work than the average German politician.
    一位欧洲高层官员（法国人，而非英国人）近来抱怨称，伦敦反对资本主义的普通抗议者，比普通的德国政治家更懂得市场是如何运行的。
14. The demonstrator should indicate the degree of this reliability.
    验证者应该指出这种可靠的程度。
15. Demonstrator and Project leader should support each other in different stages.
    演示者和项目主管将在不同的阶段互相支持。
16. Demonstrator should prepare a checklist on the information provided from the Project leader.
    演示员将根据项目组长提供的信息准备一份项目清单。
17. Project leader should help demonstrator to record down all the question being asked by the customer.
    项目组长应该帮助演示者记录客户提到的问题。
18. A 160 Gbit/ s demonstrator towards the application for a low frequency antenna array network called LOFAR is presented.
    报告了一个用于低频射频天线网络LOFAR的160Gbit/s演示平台。
19. Key Techniques for Inter-satellite Optical Communication and Preliminary Design of Optical Antenna of Demonstrator System
    卫星光通信关键技术与演示系统光学天线
20. Repairing Ergometer with Sodium's Spectrum Demonstrator
    利用钠的光谱演示器修复测力计
21. The Design and Implementation of Multimedia Data Structure Computer Demonstrator System Developed with VB
    用VB开发多媒体数据结构演示系统的设计与实现
22. An open interference modulating demonstrator is introduced. It's simple in structure, small in volume, easy to operate and good in process demonstrating.
    本文介绍了具有结构简单、体积小、操作方便、开放式、演示过程良好的激光干涉调制演示仪。
23. Development of Demonstrator of Multi-functional Digital Circuit
    多功能数字电路示教板的研制
24. This article introduces the principles, structures and application methods of demonstrator of electric capabilities of all-purpose liquid.
    介绍了多用溶液导电能力演示仪的原理、结构和使用方法。
25. This article introduces the structures, characters, electrocircuit and color light changing-orientation work principles of author's self-making light demonstrator of DC electromotor principles.
    介绍了作者自制的演示直流电动机原理的灯光演示仪的结构、特点、电路原理和彩灯换向工作原理。
26. Working principle and design requirement are introduced. According to the teaching practice, an optical fiber gyroscope demonstrator is designed.
    介绍了光纤陀螺仪的工作原理及设计要求，根据教学实际，设计了光纤陀螺演示仪。
27. A Digital Demonstrator for the Measuring of the Degrees of Bending and Twisting of An Engine Connecting Rod
    发动机连杆弯曲度和扭曲度的数字检测装置
28. As the guide and demonstrator of learners, college English teachers 'self-efficacy can not only affect their own profession level and class organizing ability, but also affect learners' self-efficacy to a great extent.
    大学英语教师作为学习者的引导者和示范者，其自我效能感不仅影响教师本人的专业水平和课堂组织能力，在很大程度上也影响了学习者的自我效能感。

noun

1. someone who participates in a public display of group feeling

   Synonym:    protester

2. someone who demonstrates an article to a prospective buyer

   Synonym:    sales demonstrator

3. a teacher or teacher's assistant who demonstrates the principles that are being taught