释义 |
bimetallic thermometer [¦bī·mǝ`tal·ik thǝr`mäm·ǝd·ǝr] ENGINEERING A temperature-measuring instrument in which the differential thermal expansion of thin, dissimilar metals, bonded together into a narrow strip and coiled into the shape of a helix or spiral, is used to actuate a pointer. Also known as differential thermometer. |