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- Warm air rises by convection. 暖空气因对流作用而上升。
- A partly enclosed, directly heated surface from which warm air circulates by convection. 对流式加热机一个部分被封闭,暖空气在其直接加热的表面上通过对流进行循环的装置
- As the warm air rises, cooler air takes its place. 热空气上升时,冷空气便占据它的位置。
- A partly enclosed, directly heated surface from which warm air circulates by convection . 散发汗水的一种方法是通过对流作用。
- Warmer air rises and cooler air falls. 热空气上升,冷空气下降。
- One of the ways to dissipate perspiration is by convection. 散发汗水的一种方法是通过对流作用。
- The machine circulated hot air by convection. 这个机器使热空气通过对流来循环。
- How is heat passed in the air by convection? 热量是怎样通过对流在空气中传递的?
- Currents of warm air keep the hang-gliders aloft. 悬挂式滑翔机借着暖气流在高空飞行。
- a partly enclosed,directly heated surface from which warm air circulates by convection 对流式加热机,一个部分被封闭,暖空气在其直接加热的表面上通过对流进行循环的装置
- Air mat charges have rise by 15%. 航空邮件的费用上涨了15%25。
- My glasses fogged in the warm air. 我的眼镜因空气温暖而模糊了
- Rain occurs when a mass of warm air laden with water vapor rises. 当满含水汽的暖空气团上升时,就会下雨。
- Air mail charges have rise by 15%. 航空邮件上涨了15%25。
- To transfer(heat) by convection. 对流通过对流传(热)
- Cold air is actively burrowing under warm air. 冷空气快速地潜入到暖空气下面。
- The south wind blows warm air across the country. 南风把温暖的空气吹遍全国。
- The population of this country rose by 10 percent. 这个国家的人口增长了百分之十。
- Thunderstorm form when a warm air mass is forced by a cold mass at a front. 当暖气团在锋面处受到冷气团的作用时,就会形成雷暴雨。
- One of the ways to dissipate perspirationis by convection. 散发汗水的一种方法是通过对流作用。