第二章主要介绍400吨四柱双缸液压机的历史、维修、调试、压力标定和样品测量等内容。
The second chapter introduces the history of 400-t high-pressure machine, repair, debugging, pressure calibration and application.
利用纯金样品的二次谐波和费米边分别对高能和低能部分的入射光子能量进行了标定，并给出了系统的能量分辨率。
Photon energies of the whole range were calibrated using the second harmonic for high energies and the fermi edge of gold for low energies.
通过国家标准测微尺标定后，每次测试只须选择与物镜相对应的比例尺数值即可直接得到样品的实际大小数值。
Adopted national standards micrometer scale calibration, it can get the actual numerical size after selecting the numerical scale that corresponding to objective lens in each test.
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