铣削曲线外形各处余量不均匀,在相差悬殊时,应先(),使划线轮廓周围的余量大致相同。 ["粗铣,把大部分余量分几次切除","划线","顺铣一次","切除悬殊太大的部分"]
显像剂过厚、过薄、不均匀都会影响探伤() ["A、操作","B、缺陷的宽度显示","C、灵敏度","D、以上都不对"]
刷涂显像剂时要注意() ["A、不可过厚 ","B、顺一个方向涂 ","C、往复刷涂 ","D、刷涂前将显像剂搅拌均匀 ","E、除c以外都是"]
会议电话系统为客户提供以下哪几种与会方式?() ["与会者自行拨入","召集者拨出","混合方式","群呼方式","短信方式"]
施加干式显像剂时() ["A、应使零件表面覆盖一层厚显像剂","B、应使显像剂呈雾状喷洒在工件上","C、使用干燥的油漆刷刷涂","D、将零件浸入显像粉"]
何谓绝对式测量和增量式测量,间接测量和直接测量?