backtrack
5.Slow down and backtrack on the runway, taxiway No5 is blocked with aircraft.
6.But we should continue to enforce those reform measures that have proved effective and should not backtrack.
7.Taxiway No.6 is closed. Use No.5 into runway 03, then backtrack to the end of the runway.
8.I am jumping and mixing up the time sequence I know, so I backtrack to emphasise how it has happened suddenly, over weeks really, although the friendship was there for months, longer.
9.We will not, of course, backtrack from scientific socialism to utopian socialism, nor will we allow Marxism to remain arrested at the level of the particular theses arrived at as long as a century ago.
10.To share and express semantically the product configuration knowledge,a constraint network construction model is developed for product configuration through the object-oriented ontology,then the model is transformed into a distributed constraint satisfaction problem(DCSP) model for solution. Thus,it can represent the construction of parts of a product and relevant design knowledge exactly and completely. In addition,an asynchronous weak-commitment backtrack algorithm is developed to solve DCSP effectively and precisely.
