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招标采购
通过在一定范围内公开采购信息,要求供应商在规定时间内提出报价,经过比较分析后,按既定标准选择投标人并与其签订采购合同的一种采购方式。
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effective reflecting area
effective refractive index
effective refractory period
effective resource usage management
effective scattering cross section
effective scattering cross-section
effective scattering layer
effective search width
effective set
effective soil fertility
effective source rock
effective spike rate of tiller
effective stability
effective stimulated reservoir volume
effective storage capacity
effective stress strength parameter
effective supply
effective system
effective teaching
effective temperature
effective theory
effective thermodynamic potential
effective thickness of oil reservoir
effective thrust
effective thrust coefficient
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