本文着重介绍该产品的内部结构、外壳筋板结构和混合气体绝缘等几点改进。
Some improvements are introduced with the emphasis on the internal structure, the reinforced board of the case and the mixed gas insulation, etc.
在总结已有教材生词处理得与失的基础上，提出有关编写体例、词语释义、练习、选词等几点建议。
Then gives several advices on layout of new word, explaining the meaning of word, word exercises and the choosing of word in this paper .
现就尺寸及公差的无干涉自动标注问题提出了对零件及尺寸标注类型等进行统一分类编码、在视图内分区域标注等几点策略。
As to the strategy of automatic dimensioning in CAD, in this paper, the authors put forward several ideas to solve the interference of the dimensions and tolerances.
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