在硫磺制酸生产中，易出现升华硫和油烟堵塞纤维除雾器。
The problem of fiber demister blocked by sublimed sulfur and oil smoke appears in the production of sulfuric acid from sulfur-burning easily.
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在完成切片后，可在真空下将硫升华除掉。
After microtomy the sulphur is sublimed away under vacuum.
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