Заполните пропуски в тексте словами:
drawing board, prototype, brainwave, patent, discovery, setback, R&D, breakthrough, pioneers
The idea of a lone inventor who makes a or has a sudden clever idea or is maybe a little out of date today. While these types of ... do still exist, these days companies often has large departments. Perhaps they begin with a and then build a . Sometimes during testing there is a ... when it becomes clear the design has a fault. At this point it is time to go back to the . More work is done and there is a - a solution is found. The company apply for a for the design.