3, fluorine-butterfly valves in the system, such as the use of high temperature leakage occurs, should first be system ambient temperature, then find out reason, maintenance.
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then find out reason
然后找出原因
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Find out the reason, and then making the mistake becomes worthwhile.
如果能找出其中的原因，犯错误也是值得的。
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