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【多选题】
通过调节膨胀阀的调节杆,可以()
A.
调节阀内弹簧的预紧力
B.
顺时针调节阀杆，弹簧预紧力增加
C.
逆时针调节阀杆，弹簧预紧力减小
D.
调节弹簧预紧力，就是调节过热度的大小
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参考解析：
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