| 单词 | permittivity of free space |
| 释义 | > as lemmaspermittivity of free space permittivity of free space n. a constant ε0 which in the cgs electrostatic system of units is one and in the International System of Units is 1/ μ0c2 (= 8.854 × 10−12) farad metre−1, where μ0 is the permeability of free space and c is the speed of light.extracted from permittivityn.< as lemmas |
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