The result shows that the mechanical property and the durability of anticlastic dried mortar are suited to “ six-resistance ” enviroment in Qinghai plateau .

试验结果表明配制出的抗裂干粉砂浆的力学性能、耐久性能，可以适应青藏高原六抗环境的特点。

Then the paper explains the principle about crystal bending based on flexible hinge , the control about anticlastic distortion , the structure ensuring the fixing height between the input and output beam and the result on the finite element model about the surface of bending crystal .

说明了以柔性铰链为基础的弧矢压弯原理、压弯晶体鞍型形变的抑制、保证出射光与入射光高差固定的结构原理、压弯晶体衍射面面形误差的有限元分析结果；

The anticlastic curvature caused by bending is 1 700 times as long as the sagittal curvature , and the incident angle error is only 2.2 μ rad .

优化后晶体因压弯产生的鞍形曲率半径约为弧矢曲率半径的1700倍，造成的入射角误差为2.2μrad；