求翻译：镗削是一种用刀具扩大孔或其它圆形轮廓的内径车削工艺，镗削机理与车削一样，不过他是内孔加工；切削量和切削速度均不大，其应用范围一般从半粗加工到精加工.所用刀具通常为单刃镗刀(称为镗杆)。镗孔是镗削典型的一种。是什么意思？

Boring a hole with a knife or other rounded contours to expand the diameter turning process, mechanism and turning the same boring, but he is within the Hole; cutting capacity and cutting speed are not large, and their use is generally from the semi-rough to finishing. used for single-blade knives a

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Boring is one kind expands the pocket or other circular outline inside diameter turning craft with the cutting tool, the boring mechanism and the turning are same, but he is in the hole processing; The cutting quantity and the cutting speed are not big, its application scope generally from half roug

Boring is a tool to expand inner diameter of the hole or other circular profile turning technology, turning and boring mechanism, although he was in the hole; cutting and cutting speeds are not, and their use is generally range from half-roughing to finishing. Tools are usually single-edged boring t

Boring is a tool to expand inner diameter of the hole or other circular profile turning technology, turning and boring mechanism, although he was in the hole; cutting and cutting speeds are not, and their use is generally range from half-roughing to finishing. Tools are usually single-edged boring t