tramp steel

基本解释

This expansion of business enables Tramp Department to engage the transporting steel, grain etx. in mainly PacificOcean including West Coast of USA, Canada and Australia.
這一業務的拓展使得不定斯船運部更多地在太平洋地區包括美國西海岸，加拿大以及澳大利亞接手鋼鉄，穀物等等的運輸業務。
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Based on the mechanism of defect formation for thin slab, this paper discusses control measures of molten steel smelting, including its chemistry, temperature, tramp elements, inclusions, etc.
從薄板連鑄坯缺陷産生的機理出發，探討了鋼水化學成分、溫度、殘存元素、夾襍等方麪應採取的控制措施。