所述调节螺杆(7)的上端具锥台形阀针(6)。
The upper end of the adjusting screw (7) is provided with a frustum-shaped valve needle (6).
该文基于薄膜理论分析了受弯充气锥台的褶皱特性。
Wrinkling characteristics of a conical inflated cantilever beam under bending is analyzed based upon the membrane theory.
本文论述了锥台形空心件挤压成形工艺和模具设计要点，给出了实用的模具结构。
A dissertation is made on the process and main points of the die design for extruding the hollow parts of the frustum type.
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