英语翻译。。。 不要在线的。。。

来源：百度知道 编辑：UC知道 时间：2024/06/17 19:10:00
The headstock incorporates the drriving and gear meahanism , and a spindle which holds the workpiece and causea it to rotate at a speed which depends largely on the diameter of the workpiece. A bar of large diameter should naturally rotate more slowly than a very shin bar;the cutting speed of the tool is what matters. Tapered centers in the hollow nose of the spindle and of the taistock hold the work firmly between them.
A feed-shaft from the headstock drives the tool-post alone the saddle. Either forwards or backwards, at a fixed and uniform speed. This enables the operator to make accurate cauts and to give the work a good finish. Gears between the spindle and the feed-shaft control the speed of ratation of ratation of shaft, and therefore the forward or backward movement of the tool-post, The gear which the operator will select depends on the type of metal which he is cutting and the amount of metal he has to cut off.FOR A DEEP OR ROUGHING CUT THE FORWARDS MOVEMENT OF THE TOOL

The headstock incorporates the drriving and gear meahanism , and a spindle which holds the workpiece and causea it to rotate at a speed which depends largely on the diameter of the workpiece. A bar of large diameter should naturally rotate more slowly than a very shin bar;the cutting speed of the tool is what matters. Tapered centers in the hollow nose of the spindle and of the taistock hold the work firmly between them.
A feed-shaft from the headstock drives the tool-post alone the saddle. Either forwards or backwards, at a fixed and uniform speed. This enables the operator to make accurate cauts and to give the work a good finish. Gears between the spindle and the feed-shaft control the speed of ratation of ratation of shaft, and therefore the forward or backward movement of the tool-post, The gear which the operator will select depends on the type of metal which he is cutting and the amount of metal he has to cut off.FOR A DEEP OR ROUGHING CUT THE FORWARDS MOVEMENT OF THE T