Replace with a needle which is thicker by one.更换成大1号的机针.Replace with a new disc holder assembly and oring.用新的阀瓣固定器总成和O形 环更换.Replace with four dry cells and do the experiment again.用4节干电池取代重做一次实验....
The control system serves many functions of auto - operation, manual operation, auto - test valves, autoalarm and emergency stop.该控制系统能实现造气工段的自动运行 、 手动操作 、 阀位自动检测 、 自动报警和紧急停炉等功能....