But how the molecules structure design and optimization of polymer and surfactant would improve the binary oil-displacing system remains to be seen.
而该聚合物和表面活性剂分子结构的设计与优化对提高二元复合驱油体系性能的影响还有待研究。
Calculation results show that the strength and stiffness of the body structure have met the design requirements. However it is necessary to make further optimization for the original design.
计算结果及路试表明，该型客车的车身结构的强度和刚度基本符合设计要求，但仍有待进一步优化设计。
It gives the basis for the compressor ring valve structure modification and optimization design.
为压缩机环状阀的结构修改和优化设计提供了必要的基础。
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