用户名: 密码: 验证码:
矿山平面图.颜色
详细信息   
文摘
The specifications laid down in the document apply to the process of drawing up mine plans. The document includes the necessary colours to be used for reasons of ability of distiction or better stress or if a coloured representation is required.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700