shear legs crane中文什么意思

双肢起重机；剪刀式起重机

• shear:    vt.,vi. (sheared, ...
• leg:    n. 1.腿；(猪、羊等)供食用的腿 ...
• crane:    n. 1.鹤；〔口语〕苍鹭，鹭鸶，鹳 ...