Check the feed throat cooling and focus on extruder zone 1 for resolution.

解决方法是检查喉咙冷却部分和重点检查挤出机器区域1。

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But nothing goes through the extruder that doesn't go through the feed throat first.

但是，不先通过喂料口，就没有什么东西通过挤出机。

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In an earlier column I discussed feed throat design and how it can affect extruder performance.

在早期的专栏里，我讨论过喂料口(管)设计，以及它是如何影响挤出机的性能的。

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They feed on oak trees and their hairs contain a toxin that can cause itchy rashes, eye and throat irritations.

BBC: Toxic caterpillars to be targeted by helicopter