高危作业有害因素
hazard at highly-risk workplace
不安全的爬高作业
unsafe climbing procedure
高龄高危高难度
high-risk and elderly patient
高危高龄
dangerous and older patients
带电作业危险率
risk rate of live working
粉尘作业危害
Damage caused by dust-exposure
农业作业服务组织
agricultural operations service organization
同作作业控制
concurrent operating control
control， concurrent-operations
Control
concurrent-operations
小型农业作业机
Small agricultural machinery
small agricultural machinery SAM
cell cycle checkpoint
SAM
小型农业作业机扶手
small agricultural machinery hand