桌子上下、地面等要始终维持清洁，适当的照明和维持最佳的工作环境

桌子上下、地面等要始终维持清洁，适当的照明和维持最佳的工作环境

Results (English) 1:

Table from top to bottom, the ground must always be maintained clean, appropriate lighting and maintaining an optimal work environment

Results (English) 2:

Up and down the table, the floor, etc. should always be kept clean, proper lighting and maintain the best working environment

Results (English) 3:

On the table, the floor, etc., to always maintain a clean, adequate lighting and maintain the best working environment