在使用电阻制动时,当电阻制动投入前列车管的压力不管是500kpa还是600kpa,均 发布时间:2017-07-08 07:55 │ 来源:www.tikuol.com 题型:判断题 问题: 在使用电阻制动时,当电阻制动投入前列车管的压力不管是500kpa还是600kpa,均会自行减压30~50kpa,是列车产生轻微制动。
题型:判断题 She showed the visitors around the museum, the construction had taken more than three years. A.for whichB.with whichC.of whichD.to which 查看答案