The present state of non asbestic friction material production in China and requirement in early years of 21st century are presented.
分析了我国非
摩擦材料生产
现状及21世纪初需求量;
,
燃性The present state of non asbestic friction material production in China and requirement in early years of 21st century are presented.
分析了我国非摩擦材料生产现状及21世纪初需求量;
明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容
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