During the start-up process, the solids of sewage sludge accumulated continuously in ASBR and kept longer solid retention time (SRT), helpful to enhance the treatment efficiency.

启动过程中污泥固体物质在ASBR中不断积累而保持较高的固体停留时间(SRT)，有助于提高处理效率。

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The radial acceleration forces can cause greater retention of the solid phase combustion products near the propellant surface.

径向加速度的力量可以造成更大的保留固相燃烧产物附近的推进剂表面。

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Conclusion Solid-compression process could obtain high initial and retention strength PLLA which could fit for the general bone internal fixation.

结论：固态压缩法可获得高初始强度和维持强度的PLLA，满足一般的骨内固定要求。

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The best recruitment strategy is a solid retention strategy and this has to start at the top.

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Instead, you need a solid business strategy that will use both customer retention and new prospects to drive value and growth.

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