名词
中文翻译：孵化
同义词：
['incubation', 'incubation period']
例句：
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1. The eggs were incubated for 28 days before hatching.
这些蛋在孵化前被孵化了28天。
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2. During the incubation period, the embryo grows inside the egg.
在孵化期间，胚胎在蛋内生长。
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3. The incubation process is crucial for the survival of many species.
孵化过程对于许多物种的生存至关重要。