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单词 Portland limestone
释义

Definition of Portland limestone in English:

Portland limestone

noun
Geology
  • The oolitic limestone of the Upper Jurassic that is particularly well exposed on the Isle of Portland and is quarried as Portland stone.

Origin

Mid 19th century; earliest use found in John Craig (fl. 1847).

 
 

Definition of Portland limestone in US English:

Portland limestone

noun
Geology
  • The oolitic limestone of the Upper Jurassic that is particularly well exposed on the Isle of Portland and is quarried as Portland stone.

Origin

Mid 19th century; earliest use found in John Craig (fl. 1847).

 
 
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更新时间:2026/6/8 21:52:58