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.from Sigma Aldrich, UK were used in the as-received conditi

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.from Sigma Aldrich, UK were used in the as-received condition.什么意思,特别是in之后的
.from Sigma Aldrich, UK were used in the as-received conditi
从Sigma Aldrich, UK来的.直接以收到的状态用的
the as-received condition 收到的状态,没有做任何修改
再问: 前面是硫酸铜等化学物质,这样解释不通啊
再答: 从Sigma Aldrich买来的硫酸铜没有经过再处理,在加工,直接使用。 哪里不懂?