截至2009年底,中国工程机械主要产品保有量约为328万～356万台。截至2010年底,这个数字约为413万～447万台。截至2011年底,中国工程机械主要产品保有量约为504万～547万台。2011年时间,中国工程机械保有量增加约百万台。未来几年,中国工程机械保有量持续增加将无法避免。与之相匹配的是,对从事工程机械维护保养、操作等方面的人才需求的增长。 By the end of 2009, the holding amount of the main products of China’s construction machinery was about 3.28 million to 3.56 million units. As of the end of 2010, this figure was about 4.13 million to 4.47 million units. As of the end of 2011, the holding amount of main products of construction machinery in China was about 5.04 million to 5.47 million units. In 2011, China’s construction machinery holdings increased by about 1 million units. In the next few years, the continuous increase in the number of construction machinery in China will not be avoided. In line with this, the demand for qualified personnel engaged in the maintenance and operation of construction machinery has increased.