Abstract: Disclosed herein is a method for efficiently producing formaldehyde-free veneer manufactured boards, comprising steps of: using wood or non-wood veneer as a raw material; controlling the moisture content of the veneer to within an appropriate range; first applying an accelerant and then applying an isocyanate adhesive; then assembling the veneer into a slab according to a certain rule; carrying out microwave preheating on the slab; and feeding the slab into a hot pressing mechanism to obtain aldehyde-free veneer manufactured boards. In the present method, the process for producing aldehyde-free veneer manufactured boards is simple and easy to implement, hot-pressing production efficiency is high, and the mechanical properties of the boards are excellent.

Abstract: A speaker is provided. The speaker may include: a sensor adapted to sensing object movement within its sensing range; and a processing device configured to generate a volume control instruction if the sensor senses one of the following movements of an object: movement away from the first sensor, and movement towards the first sensor. More intuitive and easy-to-understand ways to control playback of the media player may be achieved.

Abstract: An earphone and a media player system are provided. The earphone may include: a first sensor unit and a second sensor unit respectively mounted on a left portion and a right portion of the earphone, adapted to sensing gestures and generating signals according to the sensed gestures, where the left portion and the right portion are disposed on two sides of a user's head when the user wears the earphone; a processing device, adapted to translating the signals into control instructions to control a media player; and an interface, adapted to transmitting the control instructions to the media player. Unintended operations may be reduced.