查询词典 preparation period

Digital frequency meter based on the principle of frequency measurement block diagram, using Verilog HDL language, the success of the preparation of a design process, and QuartusII software environment, the preparation of the Verilog HDL simulation program has been very good results.

根据数字频率计的测频原理方框图，采用Verilog HDL语言，成功的编写出了设计程序，并在QuartusII软件环境中，对编写的Verilog HDL程序进行了仿真，得到了很好的效果。

The cleaned coal yield , gross income and optimun blending preparation proportion can be gained through blending preparation proportion test.

介绍了在选煤厂实施最大产率原则的基础上，调整不同的配洗比例预测精煤产率及毛收入，选取最佳、可行的配比。

If from this brief review of Hellenist and Pseudepigraphic literature we turn to take a retrospect, we can scarcely fail to perceive, on the one hand, the development of the old, and on the other the preparation for the new, in other words, the grand expectancy awakened, and the grand preparation made.

如果从这个简要回顾Hellenist和Pseudepigraphic文学，我们又采取回过头来看，我们可以几乎无法察觉，一方面，发展的历史，对其他筹备工作的新的，换句话说，大觉醒的预期，并准备作出大。

The preparation of underbase is cement:fly-ash:hoggin=3:10:90, the preparation of base is cement:fly-ash:hoggin=4.5:10:90. Compared to cement hoggin, the proportion of cement has been reduced by 1%, the weight of mixture has been reduced by 5%.

对水泥粉煤灰稳定碎石材料作为路面基层材料的配合比设计及其性能进行了研究，设计底基层的配合比为水泥：粉煤灰：碎石＝3：10：90，基层配合比为水泥：粉煤灰：碎石＝4.5：10：90，较水泥稳定碎石降低水泥剂量1%左右，并节省混合料用量5%。

Various technologies, including direct or indirect methods, for the preparation of hydrogen fluoride and white carbon black from the byproduct fluosilicic acid of phosphate fertilizer are introduced, advantages and disadvantages of all the preparation methods are concluded.

介绍了直接法和间接法由磷肥副产的氟硅酸制备氟化氢和白炭黑的多种技术，总结了各种制备方法的优缺点。

Advance Preparation Experts and organizations have emphasized the importance of advance preparation.4,18,26 Medical centers must review whether performance of an emergency hysterotomy is feasible at their center, and if so, they must identify the best means of rapidly accomplishing this procedure.

预案 许多专家和医疗组织都强调预案的重要性，医疗中心必须客观评估是否具有行急诊剖宫产能力，如果施行了剖宫产，他们必须选择最佳方法尽快完成手术。

Considering complex preparation of kerogen in the petrochemical field, This paper introduces a program of kerogen complex preparation control system based on CAN bus.

本文针对石油化工领域中干酪根复杂制备过程，提出了一种以CAN 总线为基础的干酪根自动制备控制系统方案设计。

Preparation and application of GABA are concerned.Preparation of GABA by Lactobacillus brevis was studied in detail in this dissertation.

本文系统地研究了利用短乳杆菌生物法制备GABA的过程及相关工艺。

In order to reach the purpose of using pre-laser cladding method preparation of Ni-based amorphous alloy coatings on 45 steel substrate surface by the method was carried out. The principles of the three clusters and the amorphous line of the law of composition rules were used. The Ni59.35Nb34.45Sn6.2 alloying powder which has a great glass-forming ability in conventional preparation methods of amorphous alloys was chosen. In the protection of atmosphere, the amorphous surface coating was prepared. The microstructure, micro-hardness and performance of the different output power of the laser cladding were analyzed.

中文摘要：为了达到研究预置激光熔覆可以在45钢上制备Ni基非晶合金涂层的目的，采用非晶形成能力三判据原则及非晶成分团簇线定律法则，选择了采用常规非晶合金制备方法中具有极大玻璃形成能力的Ni59.35Nb34.45Sn6.2合金粉末，在保护气氛下，制备非晶涂层，并对不同输出功率下得到的涂层进行微观组织和结构表征及性能测试。

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。