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本文描述了ＧＣＹ２０型挂车运材试验。在试验期内共完成运村周转量６８９０３ｍ３·ｋｍ，平均载量３２ｍ３，同时进行了制动试验、运行轨迹测试、最小行驶曲线试验等．试验证明，２０ｔ级的挂车与重型汽车匹配合理，生产２０ｔ级运材挂车符合生产需要，是可行的。
This article describes the GCY20 trailer delivery test. During the test period, a total of 68903m3 · km of transport facilities and an average loading capacity of 32m3 were completed. Meanwhile, brake tests, running track tests and minimum driving curve tests were carried out. Test proved that 20t-class trailer and heavy-duty vehicles to match the reasonable production of 20t-class trailer trailers in line with production needs is feasible.