车站技术作业图表中调机动态代号等检的符号是（）。 ["DX","MC","DJ","DG"]
锡膏的组成：（） ["锡粉+助焊剂","锡粉+助焊剂+稀释剂","锡粉+稀释剂"]
车体与转向架中心座连接的扭距为（）Nm ["685","680","800","1000"]
车站技术作业图表中调机动态代号等信号的符号是（）。 ["DX","DG","DA","MC"]
齿轮箱采用（）级传动，转动比为（） ["1级；3.48","1级；6.458","2级；4.568","2级；6.9547"]
基本到处参数有哪些？
