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在化学分析与环境监测的广阔领域里，精准的pH值测量是基础中的基础。多年的实验室工作经验告诉我，一个微小的pH偏差，都可能对实验结果产生重大影响。而氢氧化钙pH溶液标准物质，正是那把确保我们测量准确无误
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近日，英国针织品牌John Smedley宣布Jess McGuire Dudley被正式任命为新任董事总经理，标志着John Smedley将迎来新的发展阶段。Jess McGuire Dudley
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