...replaceable butane gas cartridges.是什么意思？

...replaceable butane gas cartridges.

可替换丁烷气贮气瓶

replaceable

adj. 可代替的；

例句
Most shredding machines are based on a revolving disc fitted with replaceable blades.
大多数粉碎机都是基于一个装有可替换刀片的旋转圆盘来实现作业的。

butane

n. 丁烷；

例句
...replaceable butane gas cartridges.
可替换丁烷气贮气瓶

gas

n. 气体，[矿业] 瓦斯，汽油，毒气；vt. 加油，毒（死）；vi. 加油，放出气体，空谈；int. 该死！（令人气愤的人应即被送毒气室处死）；

例句
Methane is often regarded as the second most important greenhouse gas after carbon dioxide.
甲烷常被认为是仅次于二氧化碳的重要温室气体。

cartridges

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例句
Several spent cartridges have already been found.
几个空弹壳已经被找到。