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Composition of 0.96%-2.1% carbon. Its high carbon content ...
Solid materials have pores in them, sometimes these pores ...
The reduction in diameter that occurs as a sample material ...
A lifting body is an aircraft body shaped to produce lift. ...
The ventricular zone is the place where cortical neurons ...
The ventricular zone is the place where cortical neurons ...
The Huaqing Hot Spring is located in about 35 kilometers ...
The Shaanxi History Museum is located in the northwest of ...