、At its own expense,Master Distributor shall use its best ef

、At its own expense,Master Distributor shall use its best efforts to develop to the fulle这只是一部分.At its own expense,Master Distributor shall use its best efforts to develop to the fullest extent the Industrial Leak Detection Market in said territories by way of complete selling and marketing coverage.In connection therewith,the Principal will furnish full cooperation as may be required.