Principles of mass flow gauge and results are introduced.

介绍了质量流量计的工作原理及应用效果。

Stem flow gauge can measure plant flow rate directly. In this paper, we have evaluated the value of the instrument through farmland experiment and theory calculation.

通过田间试验及理论计算，验证了对茎流计在测量作物蒸腾方面的实用价值。

This apparatus consists essentially of a flow meter, a pressure gauge.

这个装置有一个必不可少的流量计，一个压力表。

The dynamic flow method UHV standard apparatus is an absolute vacuum standard for vacuum gauge calibration.

动态流量法超高真空标准装置是用于校准真空规的绝对真空计量标准。

We used water column type pressure gauge and the load cell system as tools to research the aerodynamic characteristic of the flow field, and attempt to discover the best solution.

利用水柱式压力计以及荷重元测力系统为测量工具，针对其流场的空气动力特性作一研究，试图找出最佳解决方案。