gradeability meaning in English

拖曳力；爬坡能力
托曳力

Electric vehicle acceleration , gradeability , and deceleration test procedure
电动机车加速爬坡能力减速的试验程序
Gradeability : around 50
爬坡度:约50度
The electromotor power rating and the motor gear ratio to the drive wheels can then be determined based on the acceleration and gradeability
然后再通过加速或者爬坡的需要来确定电动机的额定功率以及电动机与驱动轮之间的传动比。