At first, the synthetical methods and the technical conditions of 4,4′-dimethyldi--phenylamine were studied systematically in the paper.
论文首先系统研究了4,4′-二甲基二苯胺的合成方法及适宜工艺条件。
参考来源 - 三芳胺类空穴传输材料及其中间体的合成研究Based on the results of the experiments, the best technical conditions for silver nano-particle are selected.
根据试验结果确定制备纳米银的最佳工艺条件。
参考来源 - 纳米银颗粒粒度与形状控制研究Secondly technical conditions and operating characteristics should be gathered and processed, the principal factors that affect its long-term development also be analyzed.
收集整理既有铁路的技术条件、运营特征，分析影响其长远发展的主要因素。
参考来源 - 兰新铁路柳树泉至十三间房段改造工程研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Often, but depending on technical conditions, rigid pricing pays off.
但他们往往依赖于技术条件，靠固定的价格来赢利。
Technical conditions of isolating lignin from chestnut shell were studied.
研究了碱法分离板栗壳木质素的工艺条件。
The high quality product with unique flavor was obtained using the above technical conditions.
采用该技术条件能得到具有独特风味的高质量产品。
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