underclays造句
造句与例句
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- In addition to underclays, ganisters also occur as seatearths.
- Underclays, which occur within Carboniferous coal measures, commonly contain Stigmarian roots.
- Just as not all underclays are fireclays, not all fireclays are underclays.
- Just as not all underclays are fireclays, not all fireclays are underclays.
- Within Carboniferous and other coal bearing strata, fireclay quite commonly comprises many underclays.
- In Great Britain underclays, which are 1 to 3 metres ( 3 to 9 feet ) thick, are major source of commercial fireclay deposits.
- Underclays typically show considerable evidence of having been altered by plant activity and illuviated clay pore fillings, different types of pedogenic microfabrics, rhizocretions, caliche nodules, root molds, and soil horizons.
- 1935-Petrology of the Pennsylvanian shales and noncalcareous underclays associated with Illinois coals : American Ceramic Society Bulletin, v . 14, p . 113-119, 129, 134, 170-176.
- It's difficult to see underclays in a sentence. 用underclays造句挺难的
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