h_单词h_h的解释和用法

名词复数: h's

h基本解释

n.英语字母表的第八个字母

abbr.（铅笔心）硬的(=hard)

h同义词

h英英释义

Noun:

a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
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
the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
the 8th letter of the Roman alphabet
(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure;
"enthalpy is the amount of energy in a system capable of doing mechanical work"