The invention discloses an actuator, which comprises a first barrel, a second barrel, a driving element, a third barrel and a bearing element.
一种致动器包括第一装筒、第二装筒、驱动元件、第三装筒和承载元件。
The patient breathing system further comprises an arrangement (11) by which driving gas of the ventilator (2) has been separated from the patient gases flowing in the circle.
所述患者呼吸系统还包括装置（11），通过所述装置（11）使所述呼吸器（2）的驱动气体与在所述循环系统中流动的患者气体相分离；
The driving element comprises a first magnetic element and a second magnetic element, which are arranged in the first barrel and the second barrel respectively.
所述驱动元件包括分别设置于所述第一装筒和第二装筒的第一磁性元件和第二磁性元件。
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