disc harrow

Make sure that all gas fires and central heating boilers are serviced annually.

确保所有的煤气取暖器和中央供暖的锅炉每年都检修一次。

Some fires were burning oil wells. Others were in natural gas wells.

有些是油井大火, 有些是天然气井大火.

gas fires often result from earthquakes.

瓦斯造成的火灾通常是由地震引起的。

gas test and light fires in reactor furnaces.

气体检测和反应器加热炉中的点火。

based on the gas/ water dual-phase jet system powered by turbojet, the superpower extinguishing equipment has been made, which could greatly improve the ability to control the oil and flammable gas fires.

以涡喷发动机为喷射动力的气-水两相射流喷射系统，制成了超大功率的喷射雾状水的消防装备，大幅度提高了控制油、气大火火势的能力和灭火效率。

it's a compressed gas used to suppress fires.

用于消防的压缩气体

At the same time, they issued smoke, inflamer produce a great lot of smother, so in fires, majority people got gas poisoning and asphyxiate and died.

同时发烟量大，在火灾中燃烧物产生大量浓烟使火灾中的大多数人员被有毒气体和烟雾熏倒窒息而身亡。

Gas lines may be broken and result in fires.

瓦斯管线可能遭震断,而导致火灾.