The preservation of food by sealing in cans or jars

• Heat processing to make food safe and shelf-stable

通过密封于罐头或玻璃瓶保存食物的工艺

• 经加热处理使其安全且耐储存

The activity of collecting cans for recycling, often for cash

为换取现金而收集铝罐等可回收物的活动

Present participle and gerund of can: to preserve food in cans or jars

动词 to can（装罐保存）的现在分词或动名词

• 把食物装入罐或瓶中保存