1459997322-df4810f5-fc9f-4f7f-ac2f-fdee7e48f9ec

A valve and trigger cyclically connect a vacuum and a blower to a filter. At least a portion of a top surface of the substrate is to be immersed in liquid. The method further includes drilling the borehole through at least part of the production zone with a second drill bit. The first and second radio transceiver systems are operable to selectively transmit a signal to select wireless module, receive a response signal from the select wireless module, and generate first information based on a detected relationship between the selective transmission and the receipt of the response signal. The first pixel pitch is a distance between corresponding features of two adjacent pixels along the first axis, and the second pixel pitch is a distance between corresponding features of two adjacent pixels along the second axis. Provides smooth roll control during change in turning direction.