The authors posit a rule of thumb: a ten-point rise in their ageing ratio is associated with 0.9 extra robots per thousand workers.

一个国家的老龄化速率每增加10个百分点，每千名工人对应的机器人数量就会增加0。9个。

" It's also expected that the aging ratio will continue to rise due to the decline in marriages, " Dong Yuzheng, dean at the Guangdong Academy of Population Development, told Yicai.

“由于结婚率下降，预计老龄化比例将继续上升。”