最后提出了关于实现弯管流量计标准化的几点建议，并探讨了今后的研究方向和研究方法。
Several points to realize standardization of elbow flow meters are suggested. And the orientation and methods of the future re-search are inquired into.
弯管圆度应保证弯管上任何一点的外部直径不得大于标准直径的 2%。
The Out-of-roundness is not more than 2% of the outside diameter of the pipe at any point.
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