gas cylinder的用法和樣例：
例句
- Two other stores of the supply store chain, Maksidom, were evacuated after workers discovered gas ampoules with what appeared to be timing devices.
該連鎖賣(mài)場(chǎng)內的另外兩個(gè)商店里，在工人們用形似定時(shí)器的裝置發(fā)現了數支氣筒之后，人群得以及時(shí)疏散。 - Repeatedly put the gas syringe in a beaker of water with varied temperature for some time, in order to make the gas temperature is equal to the water temperature.
重復把氣筒放入盛有不同溫度的水的燒杯內，放置一段時(shí)間，令氣體溫度與水溫相同。
