在LHC可以启动前，必须将其5万吨设备用超流体液氦冷却至绝对零度之上仅1.8 K的温度，这是迄今为止历史上最大的低温工程。
Before the LHC can start, 50,000 tonnes of equipment have to be cooled to just 1.8? Kelvin above absolute zero with superfluid liquid helium - by far the largest cryogenic project in history.
超流氦的沸腾现象具有一般流体的沸腾现象所没有的特异性质。
The boiling phenomenon in the superfluid helium has some special characteristics.
超流氦的沸腾现象具有一般流体的沸腾现象所没有的特异性质。
The boiling phenomenon in the superfluid helium has some special characteristics.
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