建国卅多年来,我国进口和自己研制了不少建筑机械,施工机械化水平有了显著提高,对改变我国建筑业面貌,加快基本建设步伐,起到了一定作用。但同时也应看到,不少机械式样老旧,普遍存在利用率低、完好率低和使用效率低(以下简称“三低”)的现象。 In the past several years, China’s imports and self-developed a lot of construction machinery. The level of construction mechanization has improved significantly. It has played a role in changing the face of China’s construction industry and accelerating the pace of capital construction. However, at the same time, it should be noted that many mechanical styles are old, and there are widespread phenomena of low utilization rate, low intact rate, and low use efficiency (hereinafter referred to as “three lows”).