单选题氟利昂制冷装置滑油分离器的回油通常靠（）控制。A截止阀手动B浮球阀C电磁阀DB或C
单选题
氟利昂制冷装置滑油分离器的回油通常靠（）控制。
A
截止阀手动
B
浮球阀
C
电磁阀
D
B或C
参考解析
解析：
暂无解析
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