aerial-work-platform articulating-boom-lift basket-crane boom-lift cage cherry-picker cherrypicker compact danger dangerous elevated elevated-work-platform extension height high hydraladder hydraulic-arm hydraulic-lifting-system hydraulic-platform hydraulics lift looking-up maintenance man-lift manoeuvrable mobile-hydraulic-platform nifty-lifter platform railing rails raised raised-platform safety tall trees up-high work workplatform Harness men men-at-work roof roof-work roofing safety-harness self-propelled workmen big boom build building chain city construct construction contractor crane development duty economic economy foreman haul heavy hoist hook industrial industrialized industry job labor labour load machinery man marine occupation occupational operator progress project rebuild rig site skill ton urban winch worker workplace yellow Asian boy china chinese face head portrait reflect reflection teen adventure air aircraft atmosphere beautiful blue clouds Expedition exploration extreme flight float fly fun journey leisure Morning nature parachute paragliding ride sky sports tourism transport travel vacation