| 单词 | electricity |
| 释义 | electricity (once / 299 pages) n Electricity is the energy that powers your lights and appliances. Electricity is the stuff that Benjamin Franklin harnessed from lightning using a key and a kite. Don't try that on your own. The word electricity comes from the Greek electron, which doesn’t mean what you might expect. It means "amber," that yellow or reddish brown stone used for jewelry. The ancients noticed that when you rub amber, it gets an electrostatic charge and will pick up light things like feathers and straw. You can also describe other kinds of energy as electricity — when you're really crazy about someone, you can say there's electricity between the two of you. WORD FAMILYelectricity: electricities+/electric: electrical, electrically, electrician, electricity, electrics/electrician: electricians USAGE EXAMPLESThey are small electricity generation and distribution systems that operate independently of larger grids. BBC(Jan 02, 2017) He showered a handful of businesses with favors such as tax benefits, cheap electricity, a buy-Korea policy and the suppression of organized labor. New York Times(Jan 02, 2017) But the only bill that follows is, hopefully, a cheaper electricity bill. Washington Times(Jan 02, 2017) 1n a physical phenomenon associated with stationary or moving electrons and protons Hypo|Hyper galvanism electricity produced by chemical action hydroelectricityelectricity produced by water power photoelectricityelectricity generated by light or affected by light piezo effect, piezoelectric effect, piezoelectricityelectricity produced by mechanical pressure on certain crystals (notably quartz or Rochelle salt); alternatively, electrostatic stress produces a change in the linear dimensions of the crystal static electricityelectricity produced by friction current electricity, dynamic electricitya flow of electric charge thermoelectricityelectricity produced by heat (as in a thermocouple) physical phenomenon a natural phenomenon involving the physical properties of matter and energy 2n energy made available by the flow of electric charge through a conductor they built a car that runs on electricity Syn|Hypo|Hyper electrical energy AC, alternating current, alternating electric current an electric current that reverses direction sinusoidally DC, direct current, direct electric currentan electric current that flows in one direction steadily signalan electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes interrupta signal that temporarily stops the execution of a program so that another procedure can be carried out energy, free energy (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs 3n keen and shared excitement the stage crackled with electricity whenever she was on it Hyper stir emotional agitation and excitement |
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