chair mat
(rare) (metrology) An SI unit of electrical capacitance equal to 10⁻⁹ farads. Symbol: nF
Lacking wheels, without wheels.
A sheet of durable smooth material that is placed on a floor space occupied by a chair (typically one equipped with casters) to prevent undue wear.
In East Asia and Southeast Asia, a hollow bamboo bolster roughly the size of a human body, embraced by a person while sleeping during hot weather because its open structure exposes the body to cool...
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DiQt（ディクト）
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