The coal gases came from two-stage gasification process and the exhaust gases containing combustible components from chemical and metallurgical industries are all low heating value (LHV) gas streams.
以两段法等制作的普通煤气及化工、 冶金企业中含可燃组分的废气等，都是低热值燃料。
2
No combustible or volatile chemical materials are allowed to be put in the cabinet.
可燃性和挥发性的化学物品切勿放入箱内。
3
No combustible or volatile chemical materials are allowed to be put in the oven.