Two of these start - ups, GridPoint and Silver Spring Networks, raised $ 220 m and $ 170 m respectively.

其中两个创新企业 —— GridPoint和SilverSpring(银泉)网络已经分别投资2.2亿和1.7亿美元.

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Steve Feldman is an official with the Association of Zoos and Aquariums in Silver Spring, Maryland.

SteveFeldman是马里兰州西尔弗斯普林动物园与水族馆协会的官员.

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