| 释义 |
Noun: h eych- The constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
- Planck's constant - The 8th letter of the Roman alphabet
- H
Noun: H eych- A nonmetallic univalent element that is normally a colourless and odourless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
- hydrogen, atomic number 1 - (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
- heat content, total heat, enthalpy - A unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
- henry
Derived forms: hs, Hs Type of: alphabetic character, chemical element, constant of proportionality, element, factor of proportionality, gas, inductance unit, letter, letter of the alphabet, physical property Part of: H2O, Latin alphabet, Roman alphabet, water Encyclopedia: H |