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【多选题】
转向蜗杆轴承预紧度的调整方法:A.
蜗杆轴承预紧度的检查和调整，摇臂轴未装入壳体之前进行。
B.
用内六角扳手把调整螺塞拧到底，再退回1/8～1/4圈，使蜗杆轴在输入端具有1.0～1.7N·m的预紧力矩。
C.
用专用扳手将锁紧螺母拧紧，拧紧力矩为49N·m， 锁紧调整螺塞时，要保证调整螺塞位置不变。
D.
锁 紧后应复查输入端转矩是否符合要求，否则应重新调整。
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】接线组别相同而并列,会在变压器相连的低压侧之间产生电压差,形成环流,严重时导致烧坏变压器。()
【单选题】— Shirley won the first prize in the English speech contest. — Woo! _____ she has made since the beginning of this term! [ ]
A.
What great progress
B.
How great progress
C.
What a great progress
D.
How great a progress
【单选题】What does the author mean by saying 'put the earth at the top of their agenda' in the beginning sentence of the passage?
A.
The author intends to discuss the issue of global warming with top government leaders.
B.
The author lays stress on the research of the climate of the earth.
C.
The author attaches paramount importance to the protection of the earth's environment.
D.
The author considers the relation between automating and environmental pollution.
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