"Solar energy is an inexhaustible cosmic energy source, while geothermal heat is Earth's eternal gift from within," he said. ...
Police officers patrol a national boundary marker in Dulongjiang township. PENG CHENGJUN/FOR CHINA DAILY On a clear morning in late September, a group of border police officers departed from the ...
Kidney stones are hard deposits made from minerals such as calcium or waste products such as uric acid. They start small in your kidneys but can grow bigger as more minerals stick to them. Kidney ...
Hitting on a corner of the blade will cause unpredictable breaks and can damage the hammer. The blade of the hammer should make full contact with the stone, as in the photo on the far right. [3, ...
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