单词	convect
释义	convect /kənˈvɛkt / verb [with object] 1Transport (heat or material) by convection: this gas fire convects heat efficiently (as adjective convected) convected warmth... How do geophysicists determine whether the mantle convects heat from the molten-iron core to the surface crust, rather than conducting heat through motionless rock? The fin frame allows the motor to conduct and convect heat, which smoothbody motors don't do as well. A small grille just above the keyboard serves as an exit for the heat-pipe used to convect heat away from the processor. 1.1 [no object] (Of a fluid or fluid body) undergo convection: the fluid starts to convect (as adjective convecting) the convecting layer... Who of us has dared venture close enough to feel the air convect in our ears? If the permeability of the rock is sufficiently high, and the density difference of the hot and cold groundwater is large enough, the groundwater body will start convecting in much the same way as happens above magmatic intrusions. Another factor is composition, which influences the ability of a body to convect. Origin Late 19th century: back-formation from convection.
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