The essence in average price is the comparability between individual price and average price.
平均价值含量的本质在于个别价值与平均价值之间的可比性。
Bosed on economic comparability the consumption of materials and the price of welding and seamless pipe are compared under the different producing process.
在经济可比性的范围内，分析生产焊接钢管和无缝钢管时，各类不同工艺流程条件下的物料消耗构成和价格比较。
It has high comparability in price.
产出产品性价比极高。
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