extr - fiel
- extra column effect
- extra current
- extra high pressure discharge
- extra high pressure mercury vapor lamp
- extra high vacuum
- extra high voltage
- extra high voltage cable
- extra high voltage network
- extra high voltage system
- extra large scale integration
- extract instruction
- extraction
- extraction backpressure turbine
- extraction condensing turbine
- extraction lens
- extraction turbine
- extracurrent
- extranuclear electron
- extraordinary beam
- extraordinary ray
- extraordinary wave
- extrapolated onset
- extraterrestrial
- extraterrestrial disposal
- extreme temperature
- extreme value distribution
- extremum control
- extrinsic conduction
- extrinsic conductivity
- extrinsic photoeffect
- extrinsic properties
- extrinsic semiconductor
- eye bolt
- eye hook
- eye measurement
- eye nut
- e玻璃纤维
- f prom
- f scope
- f/f
