Methods, systems, and apparatus, including computer program products, for suggesting alternative query phrases based on query search results. The milking member includes a claw, a number of teacups connected to the claw, and a long conduit member connecting the claw to a milk-receiving member. The synchronization server or the synchronization client is adapted to skip the device capability negotiation and directly perform a synchronization with the synchronization server and the synchronization client when the negotiated device capability or status ID, or the status ID indicating that the device capability has not been changed and has been stored. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively.