科学家小心地向滴定瓶中滴加指示剂，背景中有滴定管
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科学家小心地向滴定瓶中滴加指示剂，背景中有滴定管
科学家小心地向滴定瓶中滴加指示剂，背景中有滴定管在化学实验室中，一位科学家正专注且小心地向滴定瓶里添加一滴指示剂，背景中的滴定管清晰可见。实验室里摆放着各种化学设备和工具，这显然是在进行化学分析实验，是科研工作的一部分。
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- 作者：Anna
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