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四种语言
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固体物质 (pl)
Feststoffe (mpl)
solid matter (pl)
solids (pl)
The finite element method (FEM) is a numerical calculation process for solids.
The methods used in temperature metrology determine the temperatures of solids, liquids and gases.
Sound forms longitudinal waves in gases and liquids and transverse waves in solids (solid-borne sound).
