It is important to know the ways you can use such as stairways and fire escapes,
知道这些救生的方法很重要，比如通过楼梯和安全梯，
I'm warning you that lift is not safe.
我警告你电梯不安全。
broken step chain device
梯级链断裂安全装置
A broken ladder is insecure.
破梯子是不安全的。
The ladder looks unsafe, I would not care for it to fall down while you were at the top.
梯子看来不安全；你在梯子顶上时但愿梯子别倒下来。
I'm warning you that those stairs are not safe.
我警告你那些梯子是不安全的。
Lift and Escalator Safety Campaign
升降机及电动扶梯安全运动
Elevators must undergo an annual safety inspection.
电梯必须每年作一次安全检查。
The second class will demonstrate hanging and focusing lights and ladder safety.
第二课将示范灯具悬挂、光和梯子安全。
I feel insecure on this high ladder.
站在这高高的梯子上我感到不安全。
STRUCTURE ASSESSMENT AND STRENGTHENING ON A 84 M-HIGH COCKLE STAIRS BUILT IN A SCENERY ZONE
84m高旅游螺旋梯安全验算及加固
Aseismatic Safety Analysis of the Cascade Hydroelectric Power Stations on the Lower Jinsha River
金沙江下游梯级水电站抗震安全分析
a railing placed alongside a stairway or road for safety.
为安全起见安置在楼梯或公路旁边的栏杆。
The function of each installation of the lift,safety installation return and method of stoppage examination are introduced.
介绍了电梯各装置的功能,电梯的安全装置回路,及其故障检查方法。
Lower the starboard / port gangway, secure guardrail and fix the safety net under the gangway.
放下右/左舷硬梯，固定好扶手栏杆和舷梯下的安全网。
Under ordinary conditions, an elevator is quite safe. Engineers have designed elevators with several safety features in mind.
电梯在通常情况下十分安全。工程人员在设计电梯时已考虑到一些安全措施。
Notice: Be careful. Stand behind the yellow line. Children and seniors must be accompanied.
乘梯须知：乘梯请注意安全，站在黄线以内，下梯时及时抬脚，儿童老人应有人领乘。
And should a fire break out, the elevator would immediately stop to let passengers get out safely.
一旦发生火灾，电梯会立即停止，让乘客安全逃生。