采用独特的石英玻璃烧制成的喷嘴，内腔圆滑，角度精确，长期喷雾，无结晶。
Special silex nozzle, smooth inside, Angle precise, long-term spray, without crystal.
结果表明，脉冲喷嘴射流的外边界变化规律、等速核和无因次速度分布规律等均与普通射流有较大差异。
The results show that the external boundary, potential core and dimensionless velocity distribution curve are different from those of general jets.
注射模的浇注系统是指从注塑机喷嘴开始到型腔为止的塑料流动通道，它是模具的一部分，一般分为普通流道浇注系统和无流道浇注系统两大类。
The runner system in the injection mold serves to convey the plastic melt coming from the nozzle of the injection molding machine to the cavity.
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