Nuclear fusion is the source of energy in stars such as the sun
核聚变是恒星提供能量的源泉,就像太阳一样
The sun is the major source of energy for our planet.
太阳是我们星球能量的主要来源。
Humanity has been trying to use the sun's light as a reliable source of energy for centuries.
几个世纪以来,人类一直试图利用太阳的光作为可靠的能源。
They have a material that supplies electrons and a power source that lifts the energy level of those electrons.
VOA: special.2010.09.01
Glucose has to get into cells, that's the main source of energy source that cells use, metabolism of glucose.
但葡萄糖又必须进入细胞,因为它是细胞能量的主要来源,即通过葡萄糖代谢产生能量
The plant is a major source of food energy and a major food security crop.
VOA: special.2010.06.08
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