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单词 convection
释义

convection /kən'vekʃ(ə)n//kən'vɛkʃən/

英汉-汉英词典
n. 传送,对流
形容词: convectional
形容词: convective
词组 | 习惯用语
natural convection 自然对流
convection heat transfer 对流传热
forced convection 强制对流;人工对流
heat convection 热对流
convection section [工]对流部分
mantle convection 地函对流,地幔对流;地幔对流
convection diffusion 对俩散
convection coefficient 对流系数,膜层散热系数
convection zone 对流区(等于convective zone)
原声例句
经济学人-科技

The vacuum stopped the apparatus losing heat by convection.

容器防止该设备通过对流失去热量。

Crash Course 天文篇

They form due to convection in Jupiter's atmosphere.

它们是由木星大气的对流产生的。

美食烹饪法

We bake our croissants off at 350 degrees in a convection oven.

我们将面包放入对流恒温烤箱,用350度烤。

连线杂志

One thing that the early researchers here didn't understand was convection.

这里早期的研究人员不明白的一件事是对流

美国历史频道纪录片《宇宙》

Towers of cumulous convection that you see on Jupiter are three times taller.

在木星上看到的塔状积雨云比地球的高三倍。

科学大揭秘

There are three main ways by which heat transfer occurs, conduction, convection and radiation.

传导、对流和辐射。

科普小杂文

Convection, the heating principle on which most earth-based ovens run, doesn't work in orbit.

地球上大多数烤箱的加热原理是对流,但在太空里这派不上用场。

美国历史频道纪录片《宇宙》

The internal convection currents that drive geology stop and, in general, it just freezes up.

行星内部没有了地质对流,总而言之,里面冻结了。

《分钟地球》趣味科普(精选双语)

All that water vapor rising from the forest feeds moisture-laden clouds while also causing convection.

这些从森林中升起的水蒸气,培养了潮湿的云朵,同时也导致了对流

CNN 精选 2016年8月合集

As soon as this warning convection clears out, we will try to cover very quickly.

在预警对流清除以后,我们要迅速行动。

中文百科

对流

一个火炉的热对流示意图

对流是指流体内部的分子运动,是热传与质传的主要模式之一。热对流(亦称为对流传热)是三种主要热传方式中的其中一种(另外两种分别是热传导与热辐射)

对流通常发生在流体内或流体和容器之间有温度差时,因为温度的差异会使得流体之间密度不同,当液体或气体物质一部分受热时,体积膨胀,密度减少,逐渐上升,其位置由周围温度较低、密度较大的物质补充之,此物质再受热上升,周围物质又来补充,如此循环不已,遂将热量由流动之流体传播到各处。质传方面的例子如不同的盐分密度或者是外力的施与引起密度不均,也会引起对流。在大气中、海洋内、以及行星的地函里,也常有对流发生。

英语百科

Convection 对流

This figure shows a calculation for thermal convection in the Earth's mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less-dense lower boundary layer sends plumes of hot material upwards, and likewise, cold material from the top moves downwards.
A heat sink provides a large surface area for convection to efficiently carry away heat.
Convection cells in a gravity field
Idealised depiction of the global circulation on Earth

Convection is the concerted, collective movement of groups or aggregates of molecules within fluids (e.g., liquids, gases) and rheids, through advection or through diffusion or as a combination of both of them. Convection of mass cannot take place in solids, since neither bulk current flows nor significant diffusion can take place in solids. Diffusion of heat can take place in solids, but that is called heat conduction. Convection can be demonstrated by placing a heat source (e.g. a Bunsen burner) at the side of a glass full of a liquid, and observing the changes in temperature in the glass caused by the warmer ghost fluid moving into cooler areas.

近义、反义、联想词
近义词
n.
temperature change, natural process, natural action, action, activity

联想词
cooling冷却的;dissipation损耗;airflow气流;oven烤箱, 炉;conduction传导;heat热度;evaporation蒸发;turbulence气体或水的涡流;magma岩浆;vapor蒸汽;ovens烤箱;
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更新时间:2025/6/21 18:10:09