Half the number of bolts in floating head of deethanizer overhead cooler were brittle fractured.
气体分馏装置脱乙烷塔顶冷却器浮头螺栓，
生脆性
裂。
Half the number of bolts in floating head of deethanizer overhead cooler were brittle fractured.
气体分馏装置脱乙烷塔顶冷却器浮头螺栓，生脆性裂。
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