Q: what does stratification and temperature gradient mean?

A: What does stratification and temperature gradient mean?
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Q: before you can open a ism file, you'll need to figure out what kind of file the ism file extension refers to.

A: Before you can open a ISM file, you'll need to figure out what kind of file the ISM file extension refers to.
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Q: hoover zanussi zans730 - description, photos, features vacuum

A:
Hoover Zanussi ZANS730 - description, photos, features vacuum
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