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含煤岩系
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含煤岩系
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理学
含煤岩系
释
coal-bearing strata
含煤岩系
一套在成因上有共生关系并含有煤层(或煤线)的沉积岩系。又称含煤沉积、含煤地层、煤系、含煤建造等。
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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
uredium
uredosorus
uredospore
uredostage
ureilite
urelement
Urengoy-Uzhhorod Gas Pipeline
ureogenesis
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