Solar energy hotbed was made according to the principle of making plastic tent, conservatory and electric hotbed.

太阳能增温床是揉合塑料棚、温室和电温床的技术原理而设制的。

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And the ramp-up comes as the area has become a hotbed of some new auto technologies, such as electric cars with Tesla Motors Inc. in Palo Alto.

WSJ: Ford Joins Quest to Tap Silicon Valley's Innovation