商用动力产生
commercial power production
商用动力运转
commercial power operation
变速驱动动力分导装置
power take-off shifting lever
动力驱动摆动式钉齿耙
reciprocating power-driven tine harrow
动力驱动防弯压辊
power-driven back-up roller
全轮驱动动力平地机
all wheel drive motor grader
awd motor grader