Diffusion of heat
[电] 热扩散
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
heat
[hi:t]
n. 热，热度，高温;热烈，激烈;（身体的）发烧，发热;发情;
vt.&vi. 使温暖，使热;激发…的感情，使兴奋;
🗣️ 情景例句
Thank you.
谢谢。
Lemonade on a hot day is very refreshing.
在暑天喝柠檬水，会使人精神抖擞。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。