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单选题
660.FAV活门类型是( )What type is the FAV
A
电控气动弹簧负载开式活门 electrically controlled/pneumatically actuated/The spring load to open
B
电控气动弹簧负载关式活门 electrically controlled/pneumatically actuated/The spring load to closed
C
气控气动弹簧负载关式活门 pneumatically controlled/pneumatically actuated/The spring load to closed
答案解析
正确答案：C
解析：
FAV活门类型是( )
What type is the FAV
答案:C
解析：这个问题问的是FAV（Flow Adjustment Valve）活门的类型。答案C选择的是气控气动弹簧负载关式活门，意味着FAV是一种气动活门，可以通过气压来控制其开合状态，并且关闭时由弹簧负载。
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