青云翻译

Check all bolt connections, especially the standard tower section bolts, when each used for a period of time, must be re-tightened.

Check bolt connections, particularly Tower body standard section connecting bolts, each used for a period of time, must be tightened again.

Inspects various bolts attachment point, especially tower body standard festival connecting bolt, after uses period of time every time, must carry on the fastening.

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Check bolt connections, particularly Tower body standard section connecting bolts, each used for a period of time, must be tightened again.