问题
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The latent heat of evaporation is dissipated in the _____ in a compression refrigeration system.
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In an alternating current electrical system, a low system power factor is a direct sign of _____.
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The high pressure in fuel injection system of the diesel engine is produced by the _____.A
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In the _____ pressure charging system the pulse of energy that occur as the exhaust is rel
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_____ is used for sensing the temperature of the room in the air condition system.A.An exp
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The criminal justice system is in need of ______reform. to prevent more people from being