人字梯 meaning in Chinese

herring bone ladder
trestle ladder

Also may serve as the person character ladder , also may conveniently divide into two single ladders uses
既可用作人字梯，也可方便地分成两架单梯使用。
Characteristic : a ladder dual purpose , also may serve as expands and contracts the person character ladder , also may divide into two to expand and contract the single ladder
特点：一梯两用，既可以用作伸缩人字梯，也可分成两架伸缩单梯。