Such impurities requiring calibration calculation normally use main component as reference and use relative retention time for orientation, such value are to be recorded under each type.

这些需作校正计算的杂质，通常以主成分为参照采用相对保留时间定位，其数值一并载人各品种项下。

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As an example of large sized structural component, the mechanical model of load calibration test of an airplane wing was analysed.

以飞机机翼等大型结构为例，探讨了大型结构部件载荷标定试验的力学模型。

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The paper introduces the component, working principle, automatic calibration and it's application in the aluminium smelter of proportioning belt scale controlled by PLC.

介绍了PLC控制的配料皮带秤的组成、工作原理、自校验功能及其在铝厂碳素系统配料中的应用情况。

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