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单词
coronal hole
释义
WordReference Random House Unabridged Dictionary of American English © 2024
coro
′
nal hole
′
,
[
Astron.
]
Astronomy
a part of the solar corona that appears dark on optical and x-ray images and is characterized by low temperature and low density.
1970–75
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px
pxs
pxt.
pxt
py-
pya
pyaemia
pyaemic
pyatigorsk
pycn-
pycnial
pycnidial
pycnidium
pycniospore
pycnium
pycno-
pycnometer
pycnostyle
pydna
pye
pye-dog
pyel-
pyelitis
pyelo-
pyelogram
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更新时间:2026/6/22 18:19:25