twin boundaries 中文意思是什麼
twin boundaries
解釋
孿晶界- twin : adj 1 孿生的。2 成對的，酷似的。3 【植物；植物學】雙生[對生]的。n 1 孿生兒之一；〈pl 〉孿生兒，雙...
- boundaries : 邊界
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Defects such as extended dislocations, pile - ups of dislocation and grain boundaries ( twin boundaries ) were also investigated
塗層中存在擴展位錯、位錯塞積列、 （孿）晶界等晶體缺陷。 -
In general, polycrystal or twin magnetostrictive materials are used as the drive unit in micro - displacement actuator. however, the displacement output of the actuator under low magnetic field is small and its precision is limited, as a result of motion restriction of magnetic domain walls by grain boundaries in polycrystal or twin magnetostrictve materials
磁致伸縮是一種磁?機械耦合現象，以tb - dy - fe為代表的稀土超磁致伸縮材料，其伸縮量為普通壓電陶瓷的30 - 50倍，響應時間低於10 . 6秒，是理想的位移致動材料。
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