This research is experimental research is intended to (1) risk assessment, (2) develop ergonomic tools help to reduce the risk of working posture, and (3) improve the evaluation of working posture and lifting tasks box to your hard disk drive, and (4) compares the results of dash and Clarksdale natha of the lift before and after the improvements work station a temporary storage room to store and run automatically.
การแปล กรุณารอสักครู่..
