求翻译：该论文首先详细介绍了一下行星齿轮减速器在机械行业中的应用情况，以及说明了一下行星减速器的发展和研究的方向。然后综合比较了各种传动结构，从而确定了传动的基本类型。论文选主体部分是对传动结构的设计计算，通过分配传动比确定齿轮减速器的大致架构之后，对其进行了各个结构的设计计算和校核。论文最后对设计过程进行了总结，并在此基础上指出了一些改进的建议。是什么意思？

The paper first introduces the application of the planetary gear reducer in the machinery industry, and illustrates the direction of the development and research of the planetary gear reducer. And a comprehensive comparison of various transmission structure, in order to determine the basic type of t

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This paper first was detailed introduced an inferior planets speed reducer gear in mechanical profession application situation, as well as explained an inferior planets reduction gear development and the research direction.Then the synthesis has compared each transmission structure, thus has determi

The paper first describes in detail the application of planetary gear reducer in the machinery industry and the development of planetary gear reducer and study direction. And then comparing the various transmission structure, so as to determine the transmission of basic types. Papers of the main sec