|
error) | | |
+------->| 2. 標本抽出段階 | |
| | |
+-----------+------------+ |
+------------------>漏落 非標本誤差
+-----------+------------+(undercoverage)(nonsampling error)
| | |
| 3. 資料收集段階 | |
| | |
+-----------+------------+ |
+-------------->應答誤差,無應答誤差 |
+----
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of pipe is dropped. In contrast the sudden contraction is occurred, the mean velocity becomes fast up in a moment and pressure of pipe increase.
In contrast to these theory, Our experiment results have some errors. There are some reasons of errors.
① As you can see the error marked by red circle in
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od to calculate more efficiently. When we use this method, we don\'t need to solve material balances at each trays. However there are many graphical errors. We found that tray number is seven, but actually the tray number is eight. So we should consider factor of errors. There are some reasons of er
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Errors and expectations: A guide for teachers of basic writing, Oxford University Press
Swan, M.(2002), Seven bad reasons for teaching grammar-and two good ones, In Richards, Jack C. & Renandya, Willy A.(2002)
Thornbury, Scott(1999, 2nd. 2000), How to teach grammar, Longman
Tompkins, Gail E.(1995,
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of water which can be absorbed by people can be different in each time, so we point out that there could be many errors and gaps from the exact results by these reasons. Next time, we will have to do strict control and regulation to prevent the errors before doing experiments.
Lastly, we can suggest
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