不完全人工时效
incompletely artificial aging
完全人工时效
completely artifical aging
标准设置人工时间
standard setup labor time
标准设置人工时数
standard setup labor hours
化工工人
Chemical plant workers
trace element
Employees of chemical factory
Chemical industry workers
临时人工角膜
Temporary keratoprosthesis
keratoprosthesis
人工工作量模型
artificial work-load model