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【多选题】
液压传动的缺点主要有哪些？A.
液压油存在泄漏的可能性；
B.
对污染敏感；
C.
液压油具有压缩性，因而液压系统不能用于传动；
D.
由于液压传动需要两次能量转换，因此液压装置在传动过程中能量损失大、效率低，不适合远距离输送；
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