Adopt ceramic nozzle can be the nozzle, that is set to zero height vent end direct contact with the surface is cut, can achieve very good result.
采用陶瓷外喷嘴可以将喷嘴高度设为零，即喷口端面直接接触被切割表面，可以获得很好的效果。
At the end of the business year, accountants always set the balances of temporary accounts to zero. In this way, income measurement begins with a fresh start each year.
每个经营年度末，会计总是将临时账户的余额清零。这样，每年的利润就会重新计算。
2 on electrical equipment used in the above work, in addition to maintenance should be zero, and necessary in the first set at the end of the equipment load leakage protection equipment.
对在高处工作中所使用的电器设备，除应作维护接零外，还有必要在设备负荷的首端处设置漏电维护设备。
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