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催化剂表面有效利用率 utilization ratio of catalyst surface
在传质和传热过程中，优异的表面利用率，可降低填料层高度。
Superior surface utilization in mass and heat transfer, allowing shorter packed bed heights.
催化剂活性不仅与比表面有关，还与其活性中心分布情况、内表面利用率有关。
Catalyst activity was determined by not only specific surface area of catalyst but also the distributions of active center and utilization ratio of internal surface.
表面工程在发动机再制造中的应用，可使发动机的旧件利用率由72.3%提高到90%。
The application of surface techniques in remanufacturing engineering could improve the utilization rato of old engine parts from 72.3 % to 90 %.
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