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单词 θ72685
释义
the world > matter > properties of materials > temperature > heat > [noun] > measurement of heat > instrument > for measuring radiant heat > specific (4)
actinometer1833

Originally: an instrument for measuring the heating power of the sun's radiation. Later more widely: one for measuring the intensity of solar…

pyrheliometer1841

An instrument for measuring solar radiation incident on the earth (the solar constant).

radiograph1880

An instrument for measuring and recording the duration and intensity of sunshine. Cf. heliograph, n. 3. Now disused.

bolometer1881

An electrical instrument of great sensitiveness for measuring radiant heat.

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更新时间:2024/12/22 17:32:52