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Roentgen ray
auto.	伦琴X射线
roentgen ray
space	伦琴射线; X射线
Roentgen ray
tech.	伦琴射线; X光线
roentgen ray
telecom.	X 射线
roentgen-ray
oil	伦琴射线

Roentgen-ray: 7 phrases in 4 subjects

Earth sciences	2
Geophysics	1
Metallurgy	2
Technology	2