介绍了一种适用于测量气缸体上各孔位置及任意两孔间距离的专用测量工具。

This paper Outlines a special gauge suitable for measuring the hole positions or distance between two holes in the cylinder blocks.

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移动车体装有环形分布的超声波传感器阵列作为距离感知工具测量和路标之间的距离，里程计作为机器人自身的辅助定位工具。

Mobile robot body has a distribution of ultrasonic distance sensor array perceived as a tool for measuring the distance from the landmarks, a milestone of its own robot-assisted positioning tools.

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