trial driving meaning in Chinese

试验打桩
试舂

Application of self - balance method in trial driving project of a residential district
自平衡法在某小区试桩工程中的应用
Huade automobile trading company recently launched a new car release ceremony for tucson of beijing hyundai with trial driving provided at the seashore swimming beach
华德汽车贸易有限公司日前在海滨泳场举行北京现代途胜新车上市发布会及试乘试驾活动。