Oxidation of yellow leadmonoxide by a fused sodium chlorate-sodium nitrate mixture;
熔合通过或似通过熔化将（各成分）混合在一起；
2
Charcoal should be burned only out of doors. Use of charcoal indoors will lead to carbon monoxide poisoning.
这种炉子的使用应保证附近没有煤气泄漏，木炭只能在室外点燃，室内使用会导致一氧化碳中毒。
3
Catalytic converters reduce carbon monoxide, oxides of nitrogen, and volatile organic compounds in emissions and necessitated the use of lead-free fuel.