Abstract: A picture processing method performed by an electronic device, includes: acquiring a target picture; performing region type detection and character recognition on the target picture by combining a target type detection technology and an optical character recognition technology, determining a target region to be occluded from the target picture based on a result of the region type detection and a result of the character recognition, and occluding the target region in the target picture.

Abstract: A residential and commercial generator unit includes a casing and a complete generator fixedly arranged inside the casing; a gas inlet and a gas outlet are arranged on the casing, and the complete generator includes an intake system, a gas system, a power system, an exhaust system and a cooling system from the gas inlet to the gas outlet in turn; the complete generator also includes an electric control box to solve such problems as too big volume and clumsy appearance and large space demands of a residential and commercial generator unit due to the complex internal structure, unreasonable assembling and low utilization efficiency of space.

Abstract: Provided is an alumina-based sulfur recovery catalyst as well as its preparation method, characterized in that the catalyst has a specific surface area of at least about 350 m2/g, a pore volume of at least about 0.40 ml/g, and the pore volume of pores having a pore diameter of at least 75 nm comprises at least about 30% of the pore volume. The alumina-based catalyst according to present invention is made from flashed calcined alumina, pseudoboehmite and optionally, a binder. The present invention further relates to an use of the alumina-based sulfur recovery catalyst and a method for recovering sulfur by using this catalyst.