它必须有6个质子。
One of the best is a beam of protons.
最佳射线之一是质子射线。
So, this has got protons and neutrons.
这里面有质子和中子。
This is sum of protons plus neutrons.
它是质子数加上中子数。
Neutrons act differently from protons.
中子的作用不同于质子。
So far, only protons have had this dubious pleasure.
到目前为止，只有质子才享受过这种风险下的刺激。
For protons acceleration a huge amount of energy is required.
对质子加速需要大量的能源。
The accelerated protons will travel at nearly the speed of light.
这束加速的质子将会以接近光速的速度运动。
An element's atomic number is the number of protons in its nucleus.
一种元素的原子序数是其原子核中的质子数。
The only particles of positive charge known at that time were protons.
当时唯一知道的带有正电荷的粒子是质子。
Lead ions are significantly bigger than protons, so they carry more energy.
铅离子要比质子大得多，因此也携带着更多的能量。
Lead ions are significantly bigger than protons, so they carry more energy.
铅离子要比质子大得多，因此也携带着更多的能量。
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