n.(通常为金属的)小罐(装茶叶、咖啡等),霰弹筒,滤毒罐
The canister is filled with activated charcoal.
蒸气回收罐中充满了活性炭.
Most manufacturers use a charcoal canister.
大多数厂商都使用活性碳收集器.
"Highly inflammable," it says on the spare canister.
备用罐上写着“高度易燃”。