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单词 rheostat
释义

WordReference Random House Learner's Dictionary of American English © 2024
rhe•o•stat /ˈriəˌstæt/USA pronunciation   n. [countable]
  1. Electricitya device that regulates the flow of current through an electrical circuit.
See -stat-.
WordReference Random House Unabridged Dictionary of American English © 2024
rhe•o•stat  (rēə stat′),USA pronunciation n. [Elect.]
  1. Electricityan adjustable resistor so constructed that its resistance may be changed without opening the circuit in which it is connected, thereby controlling the current in the circuit.
  • rheo- + -stat 1843
rhe′o•static, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
rheostat /ˈriːəˌstæt/ n
  1. a variable resistance, usually consisting of a coil of wire with a terminal at one end and a sliding contact that moves along the coil to tap off the current

ˌrheoˈstatic adj
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