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Jet engine
A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition may include rocket, water j
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Battle ropes
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Mental illness
A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of
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Protective tariff
A tariff or import tax is a duty imposed by a national government, customs territory, or supranational union on imports of goods and is paid by the importer. Exceptionally, an export tax may be lev
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Equal temperament
An equal temperament is a musical temperament or tuning system that approximates just intervals by dividing an octave (or other interval) into steps such that the ratio of the frequencies of any ad
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Weight training
Strength training, also known as weight training or resistance training, is exercise designed to improve physical strength. It is often associated with the lifting of weights. It can also incorpora
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Social question
The term social question denotes the opposition between capital and labour (also described as the gap between rich and poor).CAPITAL AND LABOUR(caricature in Punch Magazine, May 1843)Social questio
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Democratic education
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Interrogative pronouns
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Esan language
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