翅是昆虫背板的片状翻出物。
The wing is a flattened evagination of the dorsal body wall.
采用单因素试验法，探讨了三层结构实木复合地板背板的含水率对地板长度方向变形的影响。
Linear deformation as a function of moisture content ( MC ) was investigated on the bottom layer of 3 layer parquet.
本发明涉及电子领域，公开了一种机框中单板槽位识别系统，使得在没有背板的场合，也能够唯一地设置单板槽位号，并能够识别单板槽位号。
This invention relates to a recognition system for single-board slot in frame. Even without back board, it can also set and identify single-board slot number uniquely.
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