Conclusions Semi micro analysis in analytical chemistry experiment is feasible. It will play an important role in training students in their basic experimentation technique, in cutting down experimental expense, and in reducing environment pollution. 结论分析化学实验半微量化是可行的,不仅有利于培养学生的基本实验操作技能,而且能够节约教学资源,减少环境污染。
Experimental results and analyses show, this scheme has higher forecast accuracy rate and less time/ space expense. 实验和分析表明,该方案有较高的预报准确率和较小的时间开销。
Experimental results have shown: the direct oxidation method consumes too much oxidant with the result of high expense, so it is impossible to be adopted in industry widely. 实验表明:直接氧化法耗用的氧化剂的量太大,处理费用较高,难以在企业中推广实施;
Experimental results show that the improved B~+-tree access method can attain higher storage utilization at the expense of more execution time than the conventional B~+-tree access method. 实验结果证明了改进B~+-树索引机制比B+-树索引机制具有更高的空间利用率。
Reduce of experimental expense with clarification of the filling rule and the formation mechanism of defect in Titanium alloys under the centrifugal force field. 故此,本文采用相似模拟和及计算机数值模拟方法,深入系统地研究了离心力场下钛合金充型流动规律及铸造缺陷的形成机理。
At the same time, the solidifying material of agitating piles has been studied to provide experimental foundations for its use in practice on the bases of material expense being under control. 同时在控制造价的基础上对搅拌桩的固化材料进行了探讨,为其用于实际工程提供实验依据实验组采取玩牌学语音的教学方法;
Experimental results show that the algorithm using double-index-decrease, at the expense of a certain time delay can save much more energy. 通过实验发现,采用二倍指数递减的算法,在牺牲一定时延时能节约更多的能量。
Experimental results show that the modified Huffman compression algorithm compared with original algorithm can achieve a higher actual configuration speed at the expense of compression ratio to some extent. 实验证明,改进的Huffman配置压缩算法与原始算法相比,尽管在一定程度上影响了压缩率,但实现了系统实际配置速度的提高。
It could order to optimize the operating parameters, save the experimental expense, shorten the experimental period and effectively guide the study of the preparing the Al-Sc master alloy and the manufacture of Al-Sc master alloy in the future. 从而达到优化电磁结晶器的操作参数、节约试验经费、缩短实验周期、有效指导制备铝钪中间合金的实验研究、生产;铝合金新产品的开发及性能的改进的目的。
In carries on the experimental control to raw material in the foundation, in mixture ratio design permission scope, specific request the trimming blend mixture ratio according to the project, may both the guarantee project construction quality, and reduces the project expense. 研究结果表明:在对原材料进行试验控制的基础上,在配合比设计的允许范围内,根据工程具体要求微调混合料配合比,可以既保证工程施工质量,又降低工程费用。