They can help raise demand by providing sales and marketing collateral for products and services and by providing access to demonstration centers.

他们能为经销商提供展示厅以及产品销售以及推广素材而激动（促进？） 销售。

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The date of the demonstration must be notified to the police.

游行示威的日期必须报告警方。

《牛津词典》

Police used tear gas to break up a demonstration.

警察使用了催泪瓦斯来驱散示威活动。

《柯林斯英汉双解大词典》

She says she thinks such public demonstration will help turn international attention to the situation in her home country.

VOA: standard.2009.07.25

But just to hammer home this point, if I could, we have time for one awkward demonstration.

但是这个时候为了再三强调到彻底的了解，如果可以的话，我们还有时间做一个不太好的示范。

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And when she was a very old lady, she led a demonstration to try to protect her little part of France on the Italian border from being exploited by tourism, more about that at the end, and with her tractor she led this demonstration.

等她老了的时候,她发起一个反对在她家那片,意大利边境上的法国领土上开发旅游业的游行,到最后还有其他别的,她开着拖拉机领导了这次游行

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Co-Founder and Chief Technology Officer Randy Cortright says the proof is in the speed with which Virent went from the lab to demonstration.

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To make the demonstration test even fairer, I would be happy if the demonstration to qualify for the assignment of the USD1, 000, 000 were reduced to a five-hour period and with a power multiplication ratio of at least eight times.

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It will include the final development, testing and verifications necessary to allow crewed demonstration flights to the space station.

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