【简答题】A.In the shop. B.In the restaurant. C.In the office. D.In the hotel.
【单选题】自由锻工艺是锻造锻件的基本依据,各种工艺的编制根据()的模式进行。
【单选题】连杆属模锻件;连杆的大小头支撑必须要选择合适的圆角过渡,以减小应力,( )。连杆的杆身一般采用工字形截面,大小头内孔倒角要小,为C0.5,整体渗碳处理,大小头淬火,抗疲劳强度大,抗交变冲击大,同时质量公差要控制+-5g。
【简答题】A.In the northwest. B.In the southwest. C.In the northeast. D.In the southeast.
【简答题】A.in the former B.of the past C.in the early D.in the earlier
【单选题】蒸汽—空气模锻锤的规格以落下部分的质量表示,一般为1000~16000kg,可以模锻约( )的工件。
【简答题】A.In the department store. B.In the dining hall C.In the bookstore. D.In the department hall
【简答题】A.in the former B.of the past C.in the early D.in the earlier