电源电压允许在电气设备额定电压误差+30V,-60V以内。
参考答案:错
翻译句子。
1. This isn't a bus.
_________________________________________
2. How do you go to school?
3. Do you walk to school?
4. I live far from school.
5. My dad drives me.
6. I ride my bicycle.
钢卡箍或支臂变形时,允许校正。对易折断的材料可(),但不应影响使用。
A.不作校正
B.拆除
C.补焊
D.折断