They even know whether or not a car can enter the gate of a building.

他们甚至知道一辆汽车是否能进入建筑物的大门。

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Since books would be published whether permitted or not, licensing is likened to "the exploit of that gallant man who thought topound up the crows by shutting his park gate."

由于书籍在批准与否的情况下都应予以出版，弥尔顿将出版许可比作“殷勤者为了赶走乌鸦而关上公园大门的举动”。

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In tests, they modeled a DNA version of an XOR logic gate that generates an output when one of two inputs is present, but not when both or neither is present.

在试验中，他们构建了一个DNA版本的“异或”逻辑门，当两个输入端中有一个有输入时，产生输出；但当两个输入端都有或都没有输入时，就不会产生输出。

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It has a gate on it and that gate is in open or close state depending on whether a ligand is present or not.

在这个通道上有个门,这个门是打开还是关闭,取决于配体到来与否

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Applying a voltage to the gate determines whether or not current can flow through the channel.

ECONOMIST: Transistors: A tall story | The