According to the national flag standard requirements, utilize the self-made flag position measuring plate to measure the flag size and the results are proved to be accurate and quick.
根据国旗标准的要求，尝试采用自制的国旗定位测量板检测国旗尺寸，从而达到准确、快速检测国旗尺寸的目的。
The differential pressure fluctuation has a quite great influence upon the measure precision in measuring natural gas flow rate with the measuring device by use of standard orifice plate.
在采用标准孔板节流装置测量天然气流量时，盖压波动对测量精度影响甚大。
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