<prompt> Translate the following text to SwahiliThis uncertainty is reflected in contractor estimates that more than 50 percent of the time charged to build the initial production missiles will be for engineering activities.  <response>: Uhakika huu unaonyeshwa katika makadirio ya mteja kwamba zaidi ya asilimia 50 ya wakati unaotumiwa kujenga makombora ya uzalishaji wa awali itakuwa kwa shughuli za uhandisi. 