liquid helium的用法和樣例：
例句
- However, materials must be suitable for use at the extremely low temperatures of liquid helium.
材料必須適用於液態氦的極低的溫度。 - It would not make sense to inject that much power into one point of the grid, and liquid helium is a cumbersome coolant.
在電力網的某個點，輸入那麽大的電力沒什麽意義，液態氦這種冷卻劑也不容易處理。
