Outdoor work × Required Skills

Self-defense Techniques (1) Semaphore Flag Operation (1) Setting levels and plumb (1) Sewer cleaning (1) Sheet installation (1) Shell Attachment Work (1) Shell Cleaning Technique (1) Shell incision operation (1) Shell sorting technique (1) Shield Tunneling Machine Operation (1) Ship Drawing Interpretation (1) Ship Machinery Inspection and Maintenance (1) Ship Radio Communication (1) Shunting Device Operation (1) Shunting Signal Operation (1) Shunting locomotive operation (1) Signal Equipment Inspection (1) Signal Handling (1) Signal Sign Reading (1) Signal Transmission (1) Signal and Flag Operations (1) Signal and Marker Confirmation Judgment (1) Signal and Sign Confirmation (1) Signal communication (1) Signal device operation (1) Simple Machine Operation (1) Simple Machinery Operation (1) Simple cleaning (1) Simple inspection and maintenance (1) Simple repairs (1)