| 释义 | 
             
                polar gantry crane
                
            龙门起重机lóng mén qǐ zhòng jī 
 gantry crane; goliath crane高架移动起重机gāo jià yí dòng qǐ zhòng jī 
 gantry crane塔式龙门起重机tǎ shì lóng mén qǐ zhòng jī 
 tower gantry crane极面jí miàn 
 polar, polar front北极的běi jí de 
 arctic, hyperboloidal, polar桶架tǒng jià 
 gantry构台gòu tái 
 gantry, gauntry以起重机搬移yǐ qǐ zhòng jī bān yí 
 crane爪式起重机zhǎo shì qǐ zhòng jī 
 claw crane极地jí dì 
 polar region极地的jí dì de 
 polar极距jí jù 
 polar distance极圈jí quān 
 polar circles极性的jí xìng de 
 polar极夜jí yè 
 polar night极轴jí zhóu 
 polar axis两极的liǎng jí de 
 polar履带式起重机lǚ dài shì qǐ zhòng jī 
 crawling crane; caterpillar crane白鹤bái hè 
 white crane吊车diào chē 
 crane, hoist行车háng chē 
 travelling crane鹤hè 
 crane; a surname鸣鹤míng hè 
 whooping crane塔吊tǎ diào 
 tower crane极坐标jí zuò biāo 
 polar coordinates
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