It can roll about a line from nose to tail — the longitudinal axis; and it can yaw, left or right, about the vertical axis.

他可以绕着从机头到机尾的纵轴来翻滚；并且可以绕着竖轴向左或向右偏航。

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This paper analyses the importance of the feed mechanism, and makes compare between different feed mechanisms, introduces a new longitudinal feed mechanism for roll grinder and its design plan.

分析了进给机构的重要性，对不同的进给机构进行比较，介绍了一种新型的轧辊磨床纵向进给机构及其设计方法。

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Roll axis - Longitudinal axis, passes through the airplane from front to rear - wing up and wing down control is by ailerons and flight spoilers.

横滚轴—又称纵轴。由飞机的前部通向后部。机翼下运动由副翼和飞行扰流板控制。

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