The mirrors have a smooth front and an open honeycomb matrix in back, making them much lighter than other mirrors and less prone to gravitational distortion.
镜片的正面是光滑的，反面是矩阵机构的蜂窝，因此比其他类型的镜片更轻，更不容受引力畸变影响。
2
Our study was found that two main reasons making the circular saw blades matrixdistortion in quenching were banded structure and the unreasonable quenching process.
研究发现，原材料的带状组织和淬火工艺的不合理是造成锯片基体淬火变形的两个主要原因。
3
While deriving the finite element equation, get the cable's strain formula considering the big distortion, get its geometry rigidity matrix and elastic rigidity matrix.