drag reduction by polymer
... turbulence drag reduction 湍流减阻 drag reduction by polymer 聚合物减阻 drag reduction method 减阻方法 ...
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drag reduction by polymer
聚合物减阻
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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By determining drag reduction efficiency of polymer in a simulative loop evaluation apparatus, effects of DDS as external electron donor on number and distribution of active centers were confirmed.
结合室内模拟环道评价装置，测定聚合物的减阻性能，确定DDS作为外给电子体对聚合活性中心数量和分布的调变作用。
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