该改进设计主要是在定模部分增加型芯，并将一次分型改成二次分型，再使倒锥部分实现强制脱模。
The improved design is increased in the fixed mold core, which change first parting into second parting and demould the inverted cone mandatorily.
神经细胞生长锥沿一定路径生长，最后到达其正确的靶位。
Neuronal growth cones navigate over long distances along specific pathways to find their correct targets.
论证了在一定条件下，排种器锥孔中的压力和速度分布可以近似的按角形域进行分析和计算。
In certain conditions pressure and velocity distribution of air flow inside the conical holes of the seed-metering wheel can be analysed and calculated approximately as in an angular region.
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