merchant steel 中文意思是什麼
merchant steel
解釋
商品鋼-
On the base, the cheap labor resources in china, the expensive international long distance freight, the seasonal delicacy of many raw materials and its inconvenience in storage forwarded the process of the product that had been exported. and also because of the incitement of high profit of the export product, modern chinese inflexible pursuit of the industrialization and the severely patriotic spirit, pushed the convert of export process industry : from foreign merchant controlling the process industry alone to the native people investing in the expert process industry, from the raw material and elementary product to the deep finished goods, from semi - processed goods to terminal products, from light industry goods to heavy chemical industry goods, and so export substitution developed silk - spinning, silk - weaving, cotton - spinning and weaving, the bean process, the egg process, noodle industry and etc were most outstanding. and also some heavy chemical industry products such as steel cement sour alkali and etc beginned to be exported
其中有一點就是中國成了工業列強的原料品供應地，正是在此基礎上，由於中國勞力資源的便宜，國際長途運費的昂貴，以及許多原料品的時鮮性和不便於儲存，它們推動了該類產品的出口加工；也由於出口品高利潤的刺激，和近代中國人對工業化的執著追求以及強烈的愛國精神，促使出口加工業的發展由外商控制到國人投資經營轉化，由加工原料初級品向一定的深加工品轉化，由生產半成品向終端產品轉化，由輕工業品向重化工業品加工轉化，出口替代就這樣發展了起來。它以生絲、絲織、棉紡織、豆類加工、蛋製品、麵粉等加工最為突出，同時也興起一部分重化工業產品如鋼鐵、水泥、酸堿等的加工出口，呈現出一些較明顯的積極的發展趨勢。 -
The specimen is obtained by collecting low carbon steel pipe experienced different time in power plant and heat treatment experiment of unused same type steel. the microstructure is analyzed by metallographies, sem, epma and tem. at the same time merchant performance is also tested
在本文所述工作中，採用金相顯微鏡、掃描電鏡、電子探針、透射電鏡等分析儀器，對上述樣品的微觀組織結構進行了分析，同時對樣品的機械性能進行了測試。 -
The change regularity for performance and microstructure of low carbon steel is summarized. the main characteristic of the process is pearlite spheroidizing, increasing of grain boundary width, element segregation and carbide in grain boundary. the change of those microstructure causes the variance of the merchant performance
通過上述的研究工作，總結了火力發電廠用低碳鋼在長期運行期間性能與微觀結構的變化規律，提出以珠光體球化、晶界寬化、元素晶界偏聚及碳化物晶界析出為主要特徵的低碳鋼微結構變化規律，以及由此而引起的材料機械性能的變化。 -
Tandard specification for steel bars, carbon, merchant quality, mechanical properties
商品級碳素鋼棒的機械特性
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