| 词汇 | expansivity |
| 释义 | expansivity noun[ C or U ] physics specializeduk /ˌɪk.spænˈsɪv.ə.ti/ us /ˌek.spænˈsɪv.ə.t̬i/ the amount that a material increases or decreases per unit of length as the result of a one degree change in temperature: 膨胀率 expansivity ofThe expansivity of copper does not change significantly in this temperature range.在此温度范围内，铜的膨胀率变化不大。 The expansivities of the two materials become more divergent with temperature. Compare expansiveness Related words expand expansive The thermal expansivity of silver increased at high temperatures. The experiment tests whether two pieces of glass with different densities have different expansivities. These equations can be used for calculating expansivity. The effect of the temperature increase is measured as linear expansivity. Mass, area, weight & volume in general A2 A3 A4 A5 area ballast density heft high density legal letter low density mass specific gravity sq. square tare volume volumetric weight |
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