Study on line in net work environment has many problems existing in operating.
网络环境下的在线学习在具体实施过程中出现了许多实际的问题。
The price of our latest straw production line is 40% lower than the existing products, and operating cost is 35% less for adopting special technology.
近来我厂开发的秸秆板生产线，由于采用特殊技术，比现有其他产品价格低40%，投产后运行费用低35%。
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