单词 | bi-metal |
释义 | bi-metal|ˈbaɪmɛtəl| [f. bi-2 + metal n.] A bimetallic material or object. Freq. attrib. or as adj., = next.
1935Discovery Dec. 369/1 The word ‘bi-metal’ is used for a composition of two metals with different expansion coefficients. Ibid., The ‘Rototherm’ bi-metal thermometer. Ibid. 369/2 Making the bi-metal in the form of a single spiral. 1938Jrnl. Marine Res. I. 95 A Bathythermograph... Mounted on the movable end of the pressure element is a straight bi-metal strip, and thus motion with pressure is at right angles to the deflection of the strip with temperature. 1946D. de Carle Pract. Watch Repairing xii. 119 A bi⁓metal balance of steel with brass fused on the outer edge is used. 1953Electronic Engin. XXV. 78 The loop is provided by a spiral bi-metal strip which tends to coil and uncoil with change of temperature. |

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