| AU |
The atomic unit system.
|
| CGS |
The centimeter-gram-second system.
|
| CGS_EMU |
The centimeter-gram-second system.
|
| CGS_ESU |
The centimeter-gram-second system.
|
| Imperial |
The imperial system (or British imperial system).
|
| MTS |
The meter-tonne-second system.
|
| Other |
Other (non-SI, cgs, Imperial, mts, US, ...) system, or to indicate a unit is not belonging to a system.
|
| SI |
The international System of Units (SI).
|
| SIAccepted |
The international System of Units (SI): accepted units such as the minute, day, and liter.
|
| SIBase |
The international System of Units (SI).
|
| SIDerived |
The international System of Units (SI).
|
| UnitSystem |
Systems of Units such as SI, including SI-derived; cgs (centimeter-gram-second).
|
| USCustomary |
The US customary system (US specific extensions to the British imperial system).
|