单项选择题
A.≦25m/min B.≦30m/min C.≦35m/min D.≦40m/min
A.≦1.0mm B.≦2.0mm C.≦3.0mm D.≦4.0mm
A.≦0.7% B.≦0.6% C.≦0.5% D.≦0.8%
A.(150~180)r/min B.(120~150)r/min C.(90~120)r/min D.(60~90)r/min
A.200um B.150um C.100um D.50um
A.湿度 B.转速 C.速度 D.温度
A.4 B.3 C.2 D.1
A.清水 B.清洁剂 C.安替克 D.酒精
A.50℃ B.60℃ C.70℃ D.80℃
A.50min B.40min C.30min D.20min
A.90KPa B.80KPa C.70KPa D.60KPa