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【多选题】
气缸盖的拆装应注意( )。
A.
拆卸气缸盖时,气缸盖螺栓应按由四周向中央的顺序,分 2~4 次逐渐拧松
B.
安装气缸盖时,气缸盖螺栓应按由四周向中央的顺序,分 2~4 次逐渐拧紧
C.
拆卸气缸盖时,气缸盖螺栓应按由中央向四周的顺序,分 2~4 次逐渐拧松
D.
安装气缸盖时,气缸盖螺栓应按由中央向四周的顺序,分 2~4 次逐渐拧紧
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