As for disadvantages, it requires a special nozzle and check ring to accommodate material coming back into the injection unit.

至于缺点，它需要一个特别的喷嘴和挡圈来容纳材料的回退。

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Special silex nozzle, smooth inside, Angle precise, long-term spray, without crystal.

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。

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The special material with elasticity is used to make the dispensing nozzle, the production of insulating glass is more convenient, simple and elegant.

特殊弹性材料制造的挤胶嘴使中空玻璃的制作更加方便、简洁、美观。

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The efficiency of his design is further improved by using the moving piston to drive water through a special steam nozzle, which increases the effectiveness of the heat transfer between the inside and outside of the reactor.

ECONOMIST: Nuclear power