The upper level will accommodate a three-lane roadway; the lower level will provide space for service and safetyinstallations.
上层为三跑道，下面隧洞为安全、维护提供的空间。
2
We have produced technical operating and safety manuals for over 400 vessels and offshore installations of all types.
我们已经为超过400艘船舶以及各类海洋工程设施提供技术操作和安全手册。
3
Other situations of not observing the relevant laws, administrative regulations, and rules, and affecting the safety of other vessels and installations in navigation, berthing and operation.