The invention provides a self-locking extension working platform of a lifting workingladder, wherein the extension working platform has self-locking function.
本发明提供了一种升降工作梯的延伸工作平台，其延伸工作平台具有自锁功能。
2
And face it, no matter how fearless you are working perched at precarious heights, the fewer trips up and down a ladder, the safer you'll be.
面对现实吧，不管你敢不敢在危险的高处工作，越少上下梯子，你就会越安全。
3
Policies such as flexible and part-time working can be crucial to women in moving up the corporate ladder.