按需向液压油箱加液压油
A.It is necessary to add fluid to the hydraulic reservoir B.Drain fluid to the hydraulic reservoir as necessary. C.Add fluid to the hydraulic reservoir as necessary正确答案C
按需向液压油箱加液压油
A.It is necessary to add fluid to the hydraulic reservoir B.Drain fluid to the hydraulic reservoir as necessary. C.Add fluid to the hydraulic reservoir as necessary正确答案C