- 行业: Government
- Number of terms: 22108
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An instrument used to identify chemicals in a substance by their mass and charge..
Industry:Biology
The process of nuclear division in cells that produces daughter cells that are genetically identical to each other and to the parent cell.
See also: meiosis.
Industry:Biology
Undifferentiated, primitive cells in the bone marrow that have the ability both to multiply and to differentiate into specific blood cells..
Industry:Biology
The study of the structure, function, and makeup of biologically important molecules..
Industry:Biology
Electromagnetic energy transmitted from the sun (solar radiation). The amount that reaches the earth is equal to one billionth of total solar energy generated, or the equivalent of about 420 trillion kilowatt-hours.
Industry:Energy
The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.
Industry:Energy
The path followed by electrons from a power source (generator or battery), through an electrical system, and returning to the source.
Industry:Energy
