Question

convection n.(热的)对流 (1) 这个机器使热空气通过对流来循环。(2) 热气可由对流、辐射和热传导来传递。(3) 对流是大气和海洋中热传输的主要方式。(4) 反映对流换热过程特性的主要参数是对流换热系数。 Convection is a major factor in weather. The sun heats the earth’s surface, then, when cooler air comes into contact with it, the air warms and rises, creating an upward current in the atmosphere. That current can result in wind, clouds, or other weather. Convection currents within the earth move layers of magma, and convection in the ocean creates currents. Convection ovens use fans to circulate heat so that whatever you're cooking cooks faster and more evenly.

Accepted Answer

英 [kən'vekʃn] 美 [kən'vekʃn] (1) The machine circulated hot air by convection.(2) Heat can be delivered by convection, radiation, and thermal conduction.(3) Convection is the principal agent of heat transfer in the atmosphere and oceans.(4) The main parameterof heat convection process is heat transfer coefficient. Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down. 1[N-UNCOUNT 不可数名词](热通过气体或液体的)对流，运流 Convection is the process by which heat travels through air, water, and other gases and liquids.   [TECHNICAL 术语]...clouds which lift warm, moist air by convection high into the atmosphere.通过对流而使温暖潮湿的空气上升到大气中的云朵...convection currents.对流气流

英语单词	convection
英美音标	英 [kən'vekʃn] 美 [kən'vekʃn]
中文释义	n.(热的)对流
英语例句	(1) The machine circulated hot air by convection. (2) Heat can be delivered by convection, radiation, and thermal conduction. (3) Convection is the principal agent of heat transfer in the atmosphere and oceans. (4) The main parameterof heat convection process is heat transfer coefficient.
中文例句	(1) 这个机器使热空气通过对流来循环。 (2) 热气可由对流、辐射和热传导来传递。 (3) 对流是大气和海洋中热传输的主要方式。 (4) 反映对流换热过程特性的主要参数是对流换热系数。
vocabulary简明	Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.
vocabulary扩展	Convection is a major factor in weather. The sun heats the earth’s surface, then, when cooler air comes into contact with it, the air warms and rises, creating an upward current in the atmosphere. That current can result in wind, clouds, or other weather. Convection currents within the earth move layers of magma, and convection in the ocean creates currents. Convection ovens use fans to circulate heat so that whatever you're cooking cooks faster and more evenly.
柯林斯解释	1 [N-UNCOUNT 不可数名词](热通过气体或液体的)对流，运流 Convection is the process by which heat travels through air, water, and other gases and liquids. [TECHNICAL 术语] ...clouds which lift warm, moist air by convection high into the atmosphere. 通过对流而使温暖潮湿的空气上升到大气中的云朵 ...convection currents. 对流气流

Convection Air Heat Transfer Process Liquid Faster Rises