That's all it takes to release 173 kilotons of energy.

其爆炸时释放出了173千吨的能量。

Remember that the Hiroshima blast was just 15 kilotons.

记住，广岛爆炸的当量只有 1.5 万吨。

The bomb dropped on Nagasaki had an explosion of 21 kilotons.

投在长崎的原子弹爆炸当量为 2.1 万吨。

The peaceful nuclear explosions treaty signed by both the United States and the Soviet Union in 1990 limits the use of nuclear weapons for non-military purposes to just 150 kilotons.

美国和苏联在 1990 年签署的和平核爆炸条约将非军事用途的核武器使用限制在 15 万吨。