用铸造模具钢坯制造模具以其耗能耗材少、生产周期短、制造成本低的特点得到了越来越多的关注、研究与应用。
The manufacture of moulds with cast mould billet is more and more regarded , studied and applied due to its low energy and material consumption, short production term and low cost.
公路双线连拱隧道以其占地少、与线路连接方便等突出优势在高等级公路建设中被越来越多的采用。
The road double lines multi-arch tunnel has such advantages as low ground area, easy connection with other lines and so forth, and is adopted more and more widely in high grade road construction.
公路双线连拱隧道以其占地少、与线路连接方便等突出优势在高等级公路建设中被越来越多的采用。
The road double lines multi-arch tunnel has such advantages as low ground area, easy connection with other lines and so forth, and is adopted more and more widely in high grade road construction.
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