利用显微硬度计、金相显微镜和X射线衍射仪测定了渗氮层的硬度梯度、层深、显微组织和相组成。

The hardness gradient, depth, microstructure and phases of nitrided layers were measured with Microhardness Apparatus, Microcopy and X-ray diffractometer.

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在旋转加速度计重力梯度仪的重力梯度测量原理的基础上，本文提出了加速度计标度因子的在线调整方法。

Based on the gravity gradient measurement principle of rotating accelerometer gravity gradiometer, an online method of accelerometers scale factor adjusting is proposed in this paper.

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