There may still be some ignition or explosive powder left in them.
因为可能放过之后还是会有一些能够点燃或会爆炸的粉末存在。
2
In the production line of polythene and polypropylene powder, the ignition risk caused by typical and frequently occurred ESD sparks has been quantitatively assessed.
对聚烯烃粉体生产工艺过程中典型和频发性的静电放电火花的点燃危险性进行了定量评价。
3
The influences of usual factor on the ignition of briquette and coal powder were also analyzed.