人字形旋臂起重机的英文

• a-derrick
• a-frame derrick

• 人:    human being; man; person; pe ...
• 旋:    whirl
• 臂:    arm
• 起重机:    crane; derrick; crab; freigh ...
• 旋臂起重机:    auslegerkran; boom hoist; crane arm; derrick crane; luffing crane; radial arm crane; revolving jib crane; rotary bridge; rotary crane; slewing crane; swing crane; swing lever crane; swinging crane; turning crane; wall jib crane