1 Some of the gases stored in cylinders could be dangerous if they leak out.
1 Some of the gases stored in cylinders could be dangerous if they leak out.
贮于气瓶的一些气体泄漏是很危险的。
1 Some of the gases stored in cylinders could be dangerous if they leak out.
贮于气瓶的一些气体泄漏是很危险的。