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TOEFL BNC: 17640 COCA: 16075

convection

Word family 
Related topics: Physics
con·vec·tion /kənˈvekʃən/ noun [uncountableU] technical  
HPthe movement in a gas or liquid caused by warm gas or liquid rising, and cold gas or liquid sinking 〔气体、液体的〕对流
Examples from the Corpus
convection• Convection takes place in liquids that are hotter at the bottom than at the top.• This process is much simpler and quicker than cleaning a convection oven.• Figure 22.5 illustrates this, choosing the case in which the previous stage had produced bimodal convection.• A single deep connection to the magma supply maintains the heat input by convection.• Hence, concentration driven convection occurs in these layers.• This would not be possible if convection was taking place.• As for ordinary convection, this is what drives the motion.• In either case, the new flow, once established, is a new pattern of steady convection.• For very dilute concentrations, the convection distributed the particles uniformly throughout the tank.
Origin convection
(1800-1900) Late Latin convectio, from Latin convehere “to bring together”, from com- ( → COM-) + vehere “to carry”
con·vec·tion noun
Chinese
Syllable
Corpus
TOEFL BNC: 17640 COCA: 16075
TOEFL BNC: 17640 COCA: 16075
TOEFL BNC: 17640 COCA: 16075
convection
Physical forces and processes: absorbance, air resistance, amplitude...

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