整个开孔刀的外形呈削去球冠的球形。
The shape of the whole boring cutter is of a sphere without a spherical cap.
卧式铣床支架的支承轴承的精度会影响刀杆的回转精度,从而影响孔的尺寸精度和圆柱度。
The precision of the support bearing of the horizontal milling machine bracket affects the rotation precision of the cutter rod, thus affecting the dimension precision and cylindricity of the hole.
据报道,今年二月,在泰国孔敬省王岩区,一名婴儿被捅了14刀,然后还被脸朝下埋在了一个田地里的20公分深坑里。
The baby was reportedly stabbed 14 times and had been buried face down in a 20cm deep hole in a field in the Wangyai district of Khon Kaen province in Thailand in February this year.
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