"So what we have done without any loss of efficiency is to replace expensive and highly toxic material with one that is completely benign and much lower cost in the process," Major said.
“所以，我们完全可以用一种完全良性而且成本低得多的物质来取代这种昂贵且带有剧毒的原料，而且无需承受任何效率损失，”梅杰说。
C, this series of products work with air as raw material, without other raw and auxiliary materials, the use of low cost.
本系列产品工作时使用空气作为原材料，无需其他原辅材料，使用成本低廉。
The material cost, without engine and instruments, is about 6000 euro, at the 2007 prices.
材料成本，没有引擎和文书，是关于六〇〇〇欧元，在2007年的价格。
Said method features simple process, low cost, saving raw material, without environmental pollution, high recovery rate and good purity.
本方法工艺简便，成本低，节省原材料，无环境污染，回收率高，纯度好。
The guiding wheel has the advantages of light structure, material conservation, and stable connection without easily generating deflection, low production cost and long service life.
结构轻巧，节省材料；连接稳定，不易发生偏斜，制造成本低，使用寿命长。
The invention has the advantages of abundant raw material, low cost and high yield, and can directly obtain monobromo aromatic ring without separation and purification;
本发明的优点是：原料易得，成本低、收率高，无需分离纯化即可直接制得单溴芳环产物；
The invention has the advantages of abundant raw material, low cost and high yield, and can directly obtain monobromo aromatic ring without separation and purification;
本发明的优点是：原料易得，成本低、收率高，无需分离纯化即可直接制得单溴芳环产物；
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