The action or an act of observing scientifically; esp. the careful watching and noting of an object or phenomenon in regard to its cause or effect…
| 单词 | θ67257 |
| 释义 | the world > matter > chemistry > experiments > [noun] > scientific method > observation (1) observation1559 The action or an act of observing scientifically; esp. the careful watching and noting of an object or phenomenon in regard to its cause or effect… |
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