Finally accomplish a boring head design.
最终完一个镗床动力头的设计。
First half of this year we have many UK companies MK3 LANDesk cannon boring head overhaul.
今年上半年我们为英国多斯克公司MK 3掘进机炮头进行大修。
According to the needs of technology and processing, we should design four special boring head which is two side by two side.
根据工艺和加工的需要，两两并排设计4个专用的镗削头。
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