虽然含量丰富（除了光子以外，它在宇宙中的含量比所有其他类型的粒子都要多），但要探测到它们却难于登天。

Though abundant (the universe probably contains more of them than any other sort of particle except photons), they are fiendishly difficult to detect.

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多库恰耶夫承认，这样的文明将不得不应对包括巨大潮汐力和因光子捕获产生的高能量密度在内的非常规条件。

Dokuchaev admits such a civilization would have to cope with extraordinary conditions including huge tidal forces and massive energy densities as photons become trapped.

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不过谢尔兹博士的设备是对已应用开来的多光子检测仪器的简单改造，从而易于推广。

Dr Shields's device, however, is a simple modification of the sort of equipment that is already used to detect multiple photons, and should thus be easy to deploy.

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