To test the theory, a chassis was dragged by rope and windlass along the floor of the Highland Park, Michigan, plant in the summer of 1913.

为了验证这一理论，1913年的夏天，一个车底盘被绳子拖着，用绞盘沿着密歇根州高地公园的地上吊起。

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Only a few CSPV plants are in operation, including a 500-kilowatt test plant from the company SolFocus in Spain, but more are on the way.

只有几个CSPV电厂在运营，包括西班牙索福克斯公司建造的一个500千瓦的试验电厂，但更多电厂正在建设当中。

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To test this idea, the team studied the DNA of pairs of closely related plant species in which one member of the pair was tropical and the other was found closer to the poles.

为了验证这个想法，科研小组们研究了几对植物的DNA，每一对均由亲缘关系很近的两种植物组成。 而且，其中的一种植物属于热带植物，另一种则属于靠近极地生长的寒带植物。

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