Abstract: A compressor (200), comprising: a first rotor (20) being rotatable around a first axis (11), the first rotor (20) comprising a first portion (22) and a second portion (24); and a first shaft (10) carrying the first portion (22) and the second portion (24), the first shaft (10) having a first end (12) and a second end (14) that are oppositely arranged, wherein the first rotor (20) is configured to be applied with a preset acting force in a direction from the first end (12) toward the second end (14) or from the second end (14) toward the first end (12) during rotation. The size of the compressor (200) can be reduced with the displacement of the compressor (200) remaining substantially unchanged.

Abstract: An Internet Key Exchange (IKE) negotiation control method, device and system are provided. In the method, a receiving end receives an IKE negotiation message sent by an initiating end, and parses the IKE negotiation message to obtain IKE negotiation message information; in a case that a current IKE negotiation is in an aggressive mode, the receiving end acquires triple information of message and initiating end identity information according to the IKE negotiation message information, and searches for and acquires a virtual negotiation interface, matched with the initiating end, on the receiving end according to the triple information of message and the initiating end identity information. An IKE negotiation control device and system are also provided.