The cold air in the working chamber can convent if the exhaust valve on top of the oven is open, the temperature is controlled constant automatically by digital display instrument.
开启箱顶排气阀可使工作室温之冷空气得以对流交换，温度控制采用数字显示仪表自动恒温调节。
The safety of production can be assured by installation of a balance safety valve at the top of the stack over the cupola furnace.
在冲天炉上部烟囱顶端设安全平衡盖板，以保证生产的正常进行；
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
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