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One question per day; no prize for correct answers, it’s just for entertainment

2019-12-20View Original

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48. For the heat-mounted assembly of couplings, unless otherwise specified by technical requirements, the maximum temperature of flame heating shall not exceed (). ? A. 200℃ B. 300℃ C. 400℃ The answer to the question from yesterday was: B. 47. The lapping of the thrust bearing shells must be carried out after the lapping of the main shaft bearings is completed (). ?A、Front B、Back C、Simultaneously

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