A synthetic glass family in the quaternary phase field of CaO\u2014SiO2-Al2O3-MgO with hydraulic and pozzolanic properties for use in differing applications in the gas and oil well cementing area. In order to achieve this, the present invention may leave the pixels in any of the two lines halftone-processed with same threshold value row after the resolution conversion in a given ratio. The transmission arms extend between two approximately diametrically opposed regions of the rotor to diametrically opposed regions of the actuator element. The transmission has eight torque-transmitting mechanisms that are each selectively engagable to connect a different respective gear of the intermeshing sets of gears to a respective one of the layshafts or to a stationary member. In particular, the piston andor pistons of the engine of the present invention can be placed in their topmost position for a period of time for the effective ignition and combustion of the airfuel mixture for a given fuel charge, hence therefore providing an increased efficiency of the piston engine with a more efficient coupling between the piston andor the power shaft driving the crank. The conversion circuit board includes plural power output areas with different preset output voltages, and after selecting the output standard, the power output areas connect to at least one power extension board via plural electrical conductive elements, so as to provide the power extension board the output power, and the power extension board has plural output wires connected to a load.