tethered balloon造句
Thetestresultsindicatedthatthemethodoftetheredballoonself-destructioncontrolledbypressureisviable.Watsonsaidtheteamwillbeespeciallyconcernedwithhowthepipeandtetheredballoonorballoonswillbehaveindiffer...
Thetestresultsindicatedthatthemethodoftetheredballoonself-destructioncontrolledbypressureisviable.Watsonsaidtheteamwillbeespeciallyconcernedwithhowthepipeandtetheredballoonorballoonswillbehaveindiffer...