Abstract: A method and an apparatus for direct writing photoetching by parallel interpenetrating super-resolution high-speed laser. The method of the present application uses a parallel interpenetrating algorithm. Firstly, a multi-beam solid light spot for writing is generated based on a writing light spatial light modulator; a multi-beam hollow light spot for inhibition is generated based on an inhibition optical spatial light modulator; the multi-beam solid light spot is combined with the multi-beam hollow light spot to generate a modulated multi-beam light spot; a writing waveform is output based on a multichannel acousto-optic modulator, a displacement stage moves at a constant speed until writing of a whole column of areas is completed, an optical switch is turned off, and the displacement stage conducts one-time stepping movement; the process is not stopped until all patterns are written.

Abstract: An ocean depth automatic compensation type full-ocean-depth hydraulic control water stop valve includes a valve body having an inlet and outlet on a side thereof; a valve sleeve assembly embedded in the valve body; and a valve core assembly. The valve sleeve assembly includes a spring cover; a pressure rod valve sleeve; a valve core cover; a valve seat; a pressing piece; a push rod valve sleeve base body; and a screw plug. The valve core assembly includes a pressure rod; a valve core; and a push rod.