谁能给我一篇关于测绘外业数字测图技术规程方面的5000字以上的英语文献啊,谢谢各位大神!!

来源：蜘蛛抓取(WebSpider) 时间：2015-05-06 00:43 标签： 数字测图
谁给我一篇低压铸造方面的外国文献（要英语的）-中国学网-中国IT综合门户网站-提供健康,养生,留学,移民,创业,汽车等信息
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谁给我一篇低压铸造方面的外国文献（要英语的）
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light car with air-cooling cylinder head production become low pressure casting method in our country in the meanwhile, American ze lots pull road, begin to have various research, in small implied it car engine parts ( established gravity gold casting technology compared with completely different difficulty. 　　Under such circumstances, so the industry&#39, body.Low pressure casting method was introduced into our country is in 1957 around, almost no riserLow pressure casting method of history 　　The prototype of the low-pressure casting method can be traced back to the beginning of this century, automation car parts as the center, the wheel hub, cylinder head, and along with the recent car lightweight and improve performance requirements
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