A study on the structure, main devices and working principle of a variable differential calorimeter used for metered heating is made.

对一种用于计量供暖的变差式热量表的结构及主要装置、工作原理进行了研究。

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Its liquid crystalline phases were studied using differential scanning calorimeter (DSC) and a polarizing microscope with a hot stage.

并用示差扫描量热分析和偏光显微镜进行表征，确定其相变温度和液晶织构。

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And polarizing microscope, wide-angle X-ray diffraction (WAXD) and differential scanning calorimeter (DSC) were used to study the crystalline of PLA membranes prepared at different conditions.

并且借助于偏光显微镜、广角X-射线衍射仪（WAXD）和差式扫描量热仪（DSC）研究了不同成膜条件下膜的结晶情况。

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That meant recruiting two clever instruments with long-winded names a differential scanning calorimeter, which measures the thermal properties of the mixture as it is sorted, and a nuclear-magnetic resonance spectrometer, which measures its chemical properties.

ECONOMIST: Flights of fancy