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几年来,市场上4桥和5桥全地面起重机的数量一直在稳步上升,每家制造商都能提供几款这样的产品,其中至少有一家的机型数量达到了两位数字。
Over the years, the number of all-terrain cranes on the 4 and 5 bridges has risen steadily on the market, with several manufacturers offering several such products, at least two of which have double-digit numbers.