- Add a (analytical) remark
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- Embed Youtube-film
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 | 29-06-2021 Hendrik Veenstra: |
35-30 =69. 35-30 43x25
70. 19-32 21-26
71. 32-28
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| PDN Diagram 1 | |||||
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35-30 =69. 35-30 43x25
70. 19-32 21-26
71. 32-28
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