Alpha particle X-ray spectrometer 光谱仪 ; 射线光谱仪 ; 光光谱仪
charged particle X-ray fluorescence 荷电粒子X射线荧光
x particle x 粒子
charged particle X-ray excitation technique 荷电粒子X射线激发技术
charged particle X-ray fluorescence analysis 带电粒子X射线荧光分析
Particle induced X-ray emission spectroscopy 射线产生 ; 粒子诱发X ; 射线发生 ; 射线孕育发生
particle induced X-ray emission 粒子激发X ; 射线发射 ; 粒子激发X射线荧光分析
particle induced x-ray emission spectrometry 粒子激发x射线光谱
X particle X粒子
In recent years, scientists have been scaling up the power of the X-ray, using massive particle accelerators or synchrotrons to deliver much larger radiation doses.
近年来,科学家们利用大量的粒子加速器或者同步加速器来产生更大的辐射剂量,从而不断地提升X光射线的能量。
As an added bonus, an "x" particle could solve another perplexing cosmological mystery: why is there more matter than antimatter in the universe?
额外的收获是,“X”粒子还能解决另一个困扰已久的宇宙谜题:为什么宇宙中物质多于反物质?
As an added bonus, an "x" particle could solve another perplexing cosmological mystery: why is there more matter than antimatter in the universe? (It's known as "baryon asymmetry" among physicists.)
额外的收获是,“X”粒子还能解决另一个困扰已久的宇宙谜题:为什么宇宙中物质多于反物质?(物理学家称之为“重子不对称”。)
Some of their work involved X-rays produced by particle accelerators, devices that bring atomic particles into high energies.
VOA: special.2009.12.08
I will draw the famous picture of some particle moving and it's here at t of some value of x.
我会画某个质点运动的,经典图像,这是某个x值对应的时间t
You're only given the particle has acceleration a, and you are asked to find out what is x?
你只知道质点的加速度为a,你需要求出x是多少
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