螺旋输送机本体由头节、中间节、尾节三种组成。

Ontology head screw conveyor section, the middle section, composed of the end of section three.

youdao

光棍节的早餐，单身汉们通常会吃四根油条，再吃一个包子，代表中间的那个点。

For breakfast on Singles' Day, singles often eat four deep-fried dough sticks and one steamed stuffed bun representing the middle dot.

youdao

那在中间一个乐节，音乐有什么变化？

So what happened in that middle section?

youdao

So even though we see a nodal plane down the center, I just want to really point out that it's only when we have a nodal plane in the internuclear or the bond axis that we're calling that a pi orbital.

虽然在中间有个节面，我想要指出的是,只有节面在核间轴,或者键轴上时,我们才叫它π轨道。

麻省理工公开课 - 化学原理课程节选

So instead, these would be canceling out wave functions between the two, so we would end up with a nodal plane down the center.

相反，两者之间的,波函数会相互抵消，所以我们在中间会得到一个节面。

麻省理工公开课 - 化学原理课程节选

They just elongated each measure by its same amount so we had harmony changing on each measure, and then in that middle section each chord was changing at the rate of two measures.

但它的基本形式没有改变，而在每个小节中和声都发生了改变，接着在中间的乐节，每个和弦每两小节改变一次。

耶鲁公开课 - 聆听音乐课程节选