1 Where changes at the worksite present a hazard about which any employee has not been previously trained.
1 Where changes at the worksite present a hazard about which any employee has not been previously trained.
因工作场所变化导致脚手架存在危险，而员工以前均未接受过此类培训。
1 Where changes at the worksite present a hazard about which any employee has not been previously trained.
因工作场所变化导致脚手架存在危险，而员工以前均未接受过此类培训。