材料必须适用于液态氦的极低的温度。
However, materials must be suitable for use at the extremely low temperatures of liquid helium.
吉利斯说，对撞机中的其余114吨液态氦没有受到这次泄漏的影响。
The remaining 114 tons of liquid helium in the collider was unaffected by the leak, said Gillies.
斯皮策的液态氦冷却剂在2009年5月用完了，所以这张假彩色图像来自在目前较温暖的操作温度下对红外光仍然敏感的两个波道。
Spitzer's liquid helium coolant ran out in May 2009, so this false color view is from two channels that still remain sensitive to infrared light at warmer operating temperatures.
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