并通过宽波束流量计特有的第二通道对零点漂移进行自动调整。
The wide-wave ultrasonic flowmeter has the unique second channel to automatically adjust the zero point drift.
旋转状态下，第一通道前后缘换热差异随旋转数的增加而增加，在第二通道中正好相反。
As the channel rotated, the Nusselt number of the first pass was found to increase on the trailing wall and to decrease on the leading wall, the reverse was true in the second pass.
旋转状态下，第一通道前后缘换热差异随旋转数的增加而增加，在第二通道中正好相反。
As the channel rotated, the Nusselt number of the first pass was found to increase on the trailing wall and to decrease on the leading wall, the reverse was true in the second pass.
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