11. In 1954, the power block was trialled by American purse seiners in the Pacific. 12. Instead, multiple political parties form coalitions for the purpose of developing power blocks for governing. 13. Its three power blocks supply a combined "'1967 MW "'of electricity to India's western grid. 14. The Puretic power block revolutionized the technology of hauling fishing nets, particularly purse seine nets. 15. Within a few months, during 1953 in San Pedro he invented the Puretic power block . 16. The power block is a mechanized pulley used on some seiners to haul in the nets. 17. The combination of the automated power block hauling synthetic nets with sonar sensing revolutionised the industry. 18. Kirchner called for the " political consolidation of Mercosur as a Latin American power block ." 19. Nowadays, power blocks are usually driven by hydraulic pumps powered by the main or auxiliary engine. 20. A power block , usually mounted on a boom or a slewing deck crane, hauls the seine net.
