顺序控制器采用二极管矩阵板有何好处?
参考答案:
好处主要有:
⑴改变程序方便,工作可靠
⑵安装简单,调试期短
⑶工作效率高,可做到一机多用
根据句意及首字母提示补全单词。
1. Do you like to watch the TV s______ to dinners.
2. He is w______ for his friends.
3. Please c______ the blackboard, Peter.
4. The children enjoy s______ in the river.
5. Sichuan is in the w______ of China
在手动相对研磨阀门时,转动时间左转的角度应稍大于右转的角度。