Sozialer Kreis

The History and Culture Development and Functions of Guizhou Rosa Roxburghii Tratt

Two or three hundred years ago, the Rosa roxburghii tratt has already drawn the attentions of literary men. The most popular poem about the fruit is “Ode to the Rosa roxburghii tratt”, written by Zhao Yijiong, a number one scholar in Qingyan Town in Guangxu period of the Qing Dynasty. It says: “Growing in the wild the Rosa roxburghii tratt refuses to be potted, and though with bright color its flo

Gear Motor Drive Motion Lead To A New Generation For Sensor Pump

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