发球区
beta probability distribution
X射线激发发光
X-ray excited luminescence
X射线激发发光光谱
x-ray excited luminescence spectrum
x-射线激发发光光谱
x-ray excited luminescence spectrum
X射线激发发射
X-ray excited emission
X-ray excited luminescence
艾滋病高发区
High prevalence areas of AIDS
半球发射率
Hemispherical emissivity
total hemispherical emittance
棒球发展
Future direction of baseball
鼻咽癌高发区
high risky area of nasopharyngeal carcinoma