释义 |
convection currentnounA current in a fluid that results from convection: the Pacific Plate is floating, propelled by convection currents deep in the mantle...- In spring when the air temperature outside the bin is higher than the grain temperature, a reverse convection current will occur.
- A radiator actually only radiates some 20% of its heat, the remaining 80% rises in a convection current from the top of the radiator cooling near the ceiling before dropping from overhead.
- As it's open to the sky, the warm air rises up and draws in cooler air from outside, so there's a complete convection current.
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