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Units and Abbreviations | |
---|---|
bbl | barrels |
ºC | degree Celsius |
g | gram |
Ga | giga annum; billion years |
h | hour |
ha | hectare (10,000m2) |
J | joule |
L | liter |
m | meter |
Ma | mega annum; million years |
mpg | miles per gallon |
OM | order of magnitude |
ppm | parts per million |
s | second |
t | tonne (metric ton) |
W | watt |
¥ | yen |
Prefixes | ||
---|---|---|
μ | micro | 10−6 |
m | milli | 10−3 |
h | hecto | 102 |
k | kilo | 103 |
M | mega | 106 |
G | giga | 109 |
T | tera | 1012 |
P | peta | 1015 |
E | exa | 1018 |