乘客在电梯门口处存在的危险及其预防措施

Dangers of Passengers at the Elevator Entrance and the Precautions

讨论了乘客在电梯门口处存在的四大危险（被绊倒的危险、被夹的危险、被剪切的危险、坠入井道的危险）的产生原因，提出了应对这些危险的预防措施，指出了乘客乘梯时在电梯门口处应注意的安全事项。

The causes of four major dangers of passengers at the elevator entrance （the danger of being tripped, being trapped, being sheared, and falling into the well） are discussed, the prevention measures of these dangers are put forward and the safety precautions that should be paid attention to when passengers take the elevator at the entrance are pointed out.