"Bu̍t-lí siông-sò͘" pán-pún chi-kan bô-kāng--ê tē-hng
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==Phó͘-sè Tiāⁿ-sò͘ ê Pió== |
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!Liōng!!Hû-hō!!Ti̍t!!Relative Standard Uncertainty |
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|[[characteristic impedance of vacuum]]||<math>Z_0 = \mu_0 c \,</math>||376.730 313 461... Ω|| Tēng-gī |
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|[[electric constant]] ([[permittivity]] of free space)||<math>\epsilon_0 = 1 / ( \mu_0 c^2 )\,</math>||8.854 187 817... × 10<sup>-12</sup>F·m<sup>-1</sup>|| Tēng-gī |
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|[[magnetic constant]] ([[permeability]] of free space)||<math> \mu_0 \,</math>||4π × 10<sup>-7</sup> N·A<sup>-2</sup> = 1.2566 370 614... × 10<sup>-6</sup> N·A<sup>-2</sup>|| Tēng-gī |
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|[[gravitational constant|Newtonian constant of gravitation]]||<math>G \,</math>||6.6742(10) × 10<sup>-11</sup>m<sup>3</sup>·kg<sup>-1</sup>·s<sup>-2</sup>||1.5 × 10<sup>-4</sup> |
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|[[Planck ê tiāⁿ-sò͘]]||<math>h \,</math>||6.626 0693(11) × 10<sup>-34</sup> J·s||1.7 × 10<sup>-7</sup> |
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|[[Dirac ê tiāⁿ-sò͘]]||<math>\hbar = h / (2 \pi)</math>||1.054 571 68(18) × 10<sup>-34</sup> J·s||1.7 × 10<sup>-7</sup> |
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|[[speed of light]] in [[vacuum]]||<math>c \,</math>||299 792 458 m·s<sup>-1</sup>|| Tēng-gī |
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