It is the employer who must ensure that he can provide safe working conditions to all his employees.
这是谁，雇主必须确保他能提供安全的工作条件，他的所有员工。
Timely monitor of their stress in each working conditions can ensure the safe of support and main arch circle with full-automatic data acquisition system.
使用全自动数据采集设备和处理系统，对每一工况下的支架、拱圈应力进行适时监控，确保了施工过程中支架和主拱圈的安全。
Safe and healthy working conditions and living environment are necessary to ensure the health of employees, prevent any harm of occupational and other diseases to employees.
为职工提供安全、健康、卫生的工作条件和生活环境，保障职工职业健康，预防和减少职业病和其他疾病对职工的危害。
Safe and healthy working conditions and living environment are necessary to ensure the health of employees, prevent any harm of occupational and other diseases to employees.
为职工提供安全、健康、卫生的工作条件和生活环境，保障职工职业健康，预防和减少职业病和其他疾病对职工的危害。
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