One end of the hollow silica gel pipe is made into taper shape, and is provided with bailing eyelets at two different location; the other end is provided with an injection orifice.
空心硅胶导管的一端制作成圆锥形并在两个不同位置处开有排水小孔，另一端开有注射孔。
Taper your pencil skirt just slightly to give it some shape.
让你的铅笔裙更紧缩一些来让它有型。
And another advantage is that the hole-wall shape is taper.
激光切割模板的另一个优点是孔壁可成锥形。
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