Studying fine-grained carbonate rocks by ultra-technique can inquire into its various origin, secondary change in diagenesis and type of pores and evaluate its reservior properties.

以超微技术手段研究细粒碳酸盐岩的结构，可探讨其多种原因，成岩次生变化和孔隙类型，并对其储集性能进行评价。

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They're looking for a change known as "barrel chest," which describes a particular posture and body shape that tends to develop as a secondary symptom of COPD.

他们在找一种叫做“桶状胸”的病变，它描述的是一种趋向于演化为COPD次要症状的特别的身体姿态或形状 .

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Why? They're looking for a change known as "barrel chest, " which describes a particular posture and body shape that tends to develop as a secondary symptom of COPD.

他们在找一种叫做“桶状胸”的病变，它描述的是一种趋向于演化为COPD次要症状的特别的身体姿态或形状 .

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The one-week change in secondary ticket prices across these regionals makes sense for 3 of the 4 regionals.

FORBES: Location, Matchups Drive Secondary Ticket Price Increases For NCAA Regionals

Imagine a group of students from a secondary school discussing climate change.

UNESCO: L'��ducation au service du d��veloppement durabe - 'Sydsvenska Dagblad' (Su��de) | Organisation des Nations Unies pour l'��ducation, la science et la culture

"There are a lot of secondary impacts of climate change which will make the quality of life in the island Pacific very, very bad, as opposed to, say, very large land masses where people have a lot more freedom to move around, " Koshi says.

NPR: Pacific Island Cultures Brace for Climate Change