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捷克斯洛伐克生产单斗挖掘机已有多年历史。具有长期生产经验的什考达公司(ШКOД)早在四十年前就开始生产挖掘机。就其产品质量而言,该公司在世界各国中是主要的机器制造企业之一。捷克斯洛伐克出产的挖掘机向世界许多国家(共35个国家)大量输出。目前,捷克斯洛伐克出产的挖掘机主要有:D 030A,D 031a,D 031K,D 500,D 051,RY 1,R Y 150及E25型(技术数据见表1)。这些挖掘机的结构特点及作用原理分述如下。
Czechoslovakia has been producing single-bucket excavators for many years.什КOД, which has long-term production experience, began producing excavators as early as 40 years ago. In terms of the quality of its products, the company is one of the major machine-building companies in the world. Excavators produced in Czechoslovakia are exported to many countries in the world (35 countries in total). At present, the excavators produced in Czechoslovakia mainly include: D 030A, D 031a, D 031K, D 500, D 051, RY 1, R Y 150 and E25 (for technical data, see Table 1). The structural features and operating principles of these excavators are described below.