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tonstein
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tonstein
Encyclopedia
理学
煤层
释
tonstein
高岭石泥岩夹矸
火山灰降落到含煤地层,在特定的地质条件下蚀变为以高岭石为主要成分的薄层黏土岩。
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urcaryote
urchin
Urd
Urdu language
URE
urea
urea acetaldehyde
urea aldehyde slow release fertilizer
urea-ammonium mixed nitrogen fertilizer
urea ammonium nitrate solution
urea cycle
urea formaldehyde
urea formaldehyde resin
urea-formaldehyde resin
urea-formaldehyde resins
urea herbicide
urea phosphate
Ureaplasma urealyticum infection
urea poisoning
urea prilling tower
urea resin
urease
urediniospore
uredinium
urediospore
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