Based on its nature and features, this article puts forward a five - step method to practise playing polyphony.
根据复调音乐的性质与特点，特总结了一套分先后五个不同步骤的复调音乐训练法。
Based on experiments, this paper puts forward the relationship of the strength of high performance concrete to the ratio of water-binder, the amount of admixture.
该文根据试验结果，得出了高性能混凝土强度和水胶比、混合材料掺量之间的关系。
This paper analyzes the reasons of the delay in returning books commonly existing in university library and its negative influence, and based on this, puts forward some effective solutions.
分析了高校图书馆普遍存在的图书滞还现象的原因及其不利影响，在此基础上提出了有效的解决方案。
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