Safety of industrial trucks - operation in potentially explosive atmospheres - use in flammable gas , vapour , mist and dust 工业用卡车的安全.在潜在爆炸气体环境下的工作.在可燃气体,蒸气,潮湿和灰尘下使用
Electromagnetic compatibility - electrical apparatus for the detection and measurement of combustible gases , toxic gases or oxygen ; german version en 50270 : 1999 电磁兼容性.可燃气体有毒气体或氧气的检测和测量用
The flame use oxyacetylene or other burnt gases , for this method , the equipment is simple , the operation is easy , but the difficulty is large 火焰采用氧?乙炔火焰或其它可燃气体火焰，这种方法设备简单，操作容易，但难度较大。
