单选题采用辅泵补油的闭式舵机液压系统放气应在()。A舵机停用时B舵机空转时C转舵时DB或C
单选题
采用辅泵补油的闭式舵机液压系统放气应在()。
A
舵机停用时
B
舵机空转时
C
转舵时
D
B或C
参考解析
解析:
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