Corrosion filter » 腐蚀过滤器 on what occasion might the man need formal clothes » 在什么场合该名男子可能需要正式的衣服 ..
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过滤器毂体应由不锈钢制成，或内表面要涂环氧树脂防止腐蚀。
The filter vessel should be made of stainless steel or the interior surface should be coated with an epoxy to prevent corrosion.
保养不好—空气，动力，液体，过滤器，腐蚀，灰尘，清洁等。
Poor maintenance -air, power, liquid, filter, corrosion, dust, clean.
螺纹，法兰和焊接等连接方式，耐腐蚀并内置过滤器。
Threaded, flanged and welding connections, corrosion and built-in filter.
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