Related by context. Frequent words. (Click for all words.) 57 airflows 56 backpressure 56 combustion gases 55 impedance matching 55 impedances 53 airflow 53 airstream 53 exhaust gases 52 underfloor 52 microchannels 52 inrush current 52 spray nozzle 52 economizer 52 microchannel 52 electrochemical reaction 52 thermal dissipation 52 temperature gradient 52 radiant heat 52 venturi 51 collimated 51 spray nozzles 51 piezoelectric materials 51 solder joints 51 recirculation 51 ionize 51 gate electrode 51 electrochemically 51 cooling fins 50 electromagnetically 50 waterproof membrane 50 fluxing 50 insulating layer 50 heatpipes 50 corrosive environments 50 adiabatic 50 parallax barrier 50 louvres 50 heatpipe 50 microsystem 50 louvers 49 solar concentrators 49 dopant 49 heat dissipation 49 airfoil 49 evaporative cooling 49 laminar flow 49 combustor 49 capacitive sensors 49 reflow soldering 49 creosote buildup 49 directivity 49 airfoils 49 swarf 48 ionisation 48 thermally efficient 48 harmonic distortion 48 decoherence 48 converts sunlight 48 photodiode 48 compressibility 48 Reverse osmosis 48 nanoribbons 48 electrostatic discharge 48 radiant heating 48 cooling ducts 48 dopants 48 drip pan 48 terahertz radiation 48 thermally stable 48 photodetector 48 electrostatic discharge ESD 47 exhaust vents 47 overvoltage protection 47 ultrasonic waves 47 operable windows 47 electrically heated 47 synchronous rectification 47 electrically conducting 47 thermoelectric materials 47 Piezoelectric 47 output voltage 47 sidespin 47 transmissive 47 thermostatically controlled 47 dispersive 47 strakes 47 reverse polarity 47 rearwards 47 water repellency 47 electrohydraulic 47 ultrasonics 47 Compressed air 47 piezo electric 47 waveguide 47 dye molecules 47 potassium ions 47 impeller 47 insulating blanket 47 infrared rays 47 bulk solids 47 condensation