([lemma=","] [lemma=grind])? [□] □
([lemma=","] [lemma=grind])? [□=□] □
([lemma=","] [lemma=grind])? [□ & □] □
Since other family members and friends would occasionally drive the instrumented vehicles , data were collected on 132 additional drivers . The description follows : Assist in design , analysis and testing of advanced vehicle systems ( including manned and unmanned air vehicles , missiles , aircraft , and re-entry vehicles ) to support precision engagement concepts . To examine speeding by the violating vehicles , data from violation records were grouped by individual intersection and posted speed limit ( PSL ) . Walkers , hikers , joggers , cyclists , inline skaters , horseback riders , cross-country skiers , mountain bikers , snowshoers , dogsledders and users of snowmobiles , allterrain vehicles , 4x4s , and dirt bikes enjoy land-based trails . These , in turn , could eventually be used to develop stronger , lighter-weight materials for more efficient vehicles , sports equipment , and other products . Our site in Xochimilco , Mexico uses processed wastewater for watering gardens around the site , washing vehicles , windows and other uses not requiring drinking water .