“giga-”的概念、定义、翻译、参考文献-科学参考

giga-

Physics

Symbol G. A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules=1 gigajoule (GJ).

Chemistry

A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules = 1 gigajoule (GJ).

Chemical Engineering

A prefix denoting 10⁹. For example, the output from a power station may be 1 GW (i.e. 10⁹ watts).

Computer

(symbol: G) A prefix indicating a multiple of one billion, 10⁹, as in gigahertz and gigavolt. When the binary number system is used in a structure or process (as in semiconductor RAM or ROM) the prefix then indicates a multiple of 2³⁰, i.e.
$1 073 741 824,$
as in gigabyte and gigabit. The context usually clarifies which meaning is intended, although, being quite close numerically, the meanings are often considered more or less equivalent. See also binary prefixes.

Biology

Symbol G. A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules = 1 gigajoule (GJ).

Geology and Earth Sciences

From the Greek gigas meaning ‘giant’, a prefix (symbol G) attached to SI units, meaning the unit ×10⁹ (e.g. 2 Gm = 2 gigametres = 2 × 10⁹ m).

单词	giga-
释义	giga- Physics Symbol G. A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules=1 gigajoule (GJ). Chemistry A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules = 1 gigajoule (GJ). Chemical Engineering A prefix denoting 10⁹. For example, the output from a power station may be 1 GW (i.e. 10⁹ watts). Computer (symbol: G) A prefix indicating a multiple of one billion, 10⁹, as in gigahertz and gigavolt. When the binary number system is used in a structure or process (as in semiconductor RAM or ROM) the prefix then indicates a multiple of 2³⁰, i.e. $1 073 741 824,$ as in gigabyte and gigabit. The context usually clarifies which meaning is intended, although, being quite close numerically, the meanings are often considered more or less equivalent. See also binary prefixes. Biology Symbol G. A prefix used in the metric system to denote one thousand million times. For example, 10⁹ joules = 1 gigajoule (GJ). Geology and Earth Sciences From the Greek gigas meaning ‘giant’, a prefix (symbol G) attached to SI units, meaning the unit ×10⁹ (e.g. 2 Gm = 2 gigametres = 2 × 10⁹ m).
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