... operating test equipment 操作测试设备 operating thermal efficiency 运行热效率 operating threshold 工作阈，工作限 ...
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Its chromatographic characteristics including column efficiency, operating temperature range, thermal stability, polarity and selectivity were studied, and its separation mechanism was discussed.
用其涂渍的弹性石英管柱柱效较高，使用温度范围较宽，热稳定性和选择性较好。研究了固定液对样品的分离机理。
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