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kailuan coalfield
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kailuan coalfield
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理学
煤田
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kailuan coalfield
开平煤田
中国石炭—二叠纪煤田。又称开滦煤田。
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pneumococcal infection
pneumococcal transformation experiment
pneumococcal vaccine
pneumoconiosis
pneumocystis pneumonia
pneumocystosis pneumonia
pneumogram
pneumohydraulic
pneumokoniosis
pneumolysin
pneumonia
pneumonia in elderly adults
pneumonia with dyspneic cough
pneumonics
pneumothorax
pneumothorax after acupuncture
pneumotoxin
pneutronic
pNGB
PNI
pnicogen
pnictide
p nitrodiphenyl
p-nitrodiphenyl
PN junction
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