In terms of titanium alloy rheology law the vibration extruded tapping technological features were analysed and one kind of vibration extruded tapper principle was offered .

从钛合金金属流变规律角度分析了振动挤压攻丝的工艺特点，给出了一种振动挤压 攻丝 机的原理。

Jennifer Tapper almost lost her one-year-old baby Jack after he swallowed a small piece contained in this train toy .

珍尼弗·塔伯几乎 因此失去了她1岁的婴儿杰克。杰克吞下了玩具火车上的一个小 配件。

Skill of Machining Tapper Based on NC Low-Speed WEDM

数控低速走丝电火花线切割机床加工 锥度的技巧