装焊胎夹具设计中应注意的问题有哪些?
参考答案:
(1)应能使被装的焊件获得准确形状和尺寸;
(2)注意装焊胎夹具的制造精度;
(3)尽量采用标准件;
(4)正确选用胎夹具材料。
对有使用伪造或变造检验合格标志嫌疑的车辆,交通警察只进行罚款处罚。
Whether you liked it or not, you shouldn't have ___ to your mother when she was talking to you. [ ]
A. turned back
B. turned down your back
C. turned your back
D. turned your back away