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h
英汉字典
英英字典
解释
字母;
同义
hydrogen
h
atomic number 1
词性
n
解释
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
示例
None
同义
h
henry
词性
n
解释
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
示例
None
同义
h
planck's constant
词性
n
解释
the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
示例
None
同义
h
词性
n
解释
the 8th letter of the Roman alphabet
示例
None
同义
total heat
enthalpy
h
heat content
词性
n
解释
(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
示例
enthalpy is the amount of energy in a system capable of doing mechanical work