It's not quite the difference between banging rocks together and conducting a symphony orchestra, but it feels like a good step in the right direction.

这个进步没有敲打岩石和演奏交响乐之间的差别那么大，但感觉它是向一个正确的方向迈出了一大步。

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The heat conducting of the interface of two different kinds of solid materials has something to do with the direction of thermal current. Such a phenomenon is called heat rectification.

两种不同固体材料相互接触所形成的接触面的热传导与热流的方向有关，这种现象称为热整流现象。

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After conducting the survey, they saw a purpose and direction for their Facebook page that was different from their online community, mykirklands.com, and they went for it.

FORBES: Attention Facebook Shoppers: Get Ready For F-Commerce

To compensate for this movement of ions, electrons have to move in the opposite direction and if the electrodes are connected by a conducting wire running through a useful circuit, that is the route they will take.

ECONOMIST: Electricity storage