袋封口机dài fēng kǒu jī
bag sealer; bag sealing machine
原声例句
2014 ESLPod
I think I have some freezer bags, too.
我想我也有一些冷冻袋。
经济学人 Science and technology
Once they realised what it was, they donned rubber gloves, scooped the remains into freezer bags, and alerted the UK Meteor Observation Network, a group of amateurs who study incoming space debris.
A " freezer bag" is a special kind of plastic bag that usually is a little thicker than a sandwich bag and a little bigger in size, but you can use to put food into and then store in the freezer.