ข้อดี : -ข้อเสีย : การทำงานในช่วงต่

Advantages:-Cons: working in various rotating range. Make time to work and need to change the time of the activities. The rhythm of the body will change to make the body affected the arrest cause stress affects the health, fatigue, fatigue occurs, especially working together for a long time. It is not working effectively, it may crash.

Advantages -
Disadvantages: work in the rotation. The need to change the time and duration of the activities. The rhythm of the body is changed The body was affected Cause stress Health effects caused fatigue fatigue. Especially when working continuously for a long time. Work is also inefficient There may be a mistake