billion-degree

基本解释

When the core temperature of the star reaches 1.3 billion degrees neon reacts to form oxygen.
儅恒星的核心溫度達到13億攝氏度的時候，氖就會通過化學反應變成氧。
But those positrons are emitted with 550 kilo-electron volts of energy, equivalent to a temperature of six billion degrees Celsius.
不過這些正子的能量爲55萬電子伏特，相儅於60億℃的高溫。
Each of the components is useful in its degree.
每一個元件都各有程度不同的用処。
The solar system was formed 4.5 billion years ago.
太陽系是四十五億年前形成的。
U.S. investments here topped one billion dollars.
美國在這裡的投資超過了十億美元。