sanitary work meaning in Chinese

卫生工程
卫生工作

Code for construction and acceptance of heating and sanitary works
采暖与卫生工程施工及验收规范
1 2 code for construction and acceptance of heating and sanitary works
采暖与卫生工程施工及验收规范
Problems in basic occupational sanitary work and its countermeasures
基层职业卫生工作存在的问题及对策
If in the usual test , the dictation , the underachiever has the progress , must praise promptly ; displays in doing sanitary work , must praise
如在平时的考试、听写中，后进生有进步的，就要及时表扬；在搞卫生中表现好，也要表扬。