查询词典 basic bismuth nitrate

Nitrate metal in nitric acid has been most rapid corrosion damage, stainless steel are the most widely-resistant nitrate materials, all under the ambient temperature of nitric acid concentration has a good corrosion resistance, it is worth mentioning that molybdenum stainless steel (such as 316,316 L) of nitrate not only the corrosion resistance of stainless steel is superior to the ordinary (such as 304,321), and sometimes even better.

硝酸 一般金属大多在硝酸中被迅速腐蚀破坏，不锈钢是应用最广的耐硝酸材料，对常温下一切浓度的硝酸都有良好的耐蚀性，值得一提的是含钼的不锈钢（如316、316L）对硝酸的耐蚀性不仅不优于普通不锈钢（如304、321），有时甚至不如。

Nitrate metal in nitric acid has been most rapid corrosion, stainless steel is the most widely-resistant nitrate materials, under normal temperature and the concentration of nitric acid all have good corrosion resistance, it is worth mentioning that molybdenum stainless steel (such as 316,316 L) of nitrate not only the corrosion resistance of stainless steel is superior to the ordinary (such as 304,321), and sometimes even better.

硝酸 一般金属大多在硝酸中被迅速腐蚀破坏，不锈钢是应用最广的耐硝酸材料，对常温下一切浓度的硝酸都有良好的耐蚀性，值得一提的是含钼的不锈钢（如316、316L）对硝酸的耐蚀性不仅不优于普通不锈钢（如304、321），有时甚至不如。

The results show that, the nitrate-N concentration in groundwater in the reed area was 0.2~0.8mg/L and significantly lower than that in surrounding wells (more than 20mg/L), and the reed wetland can remove nitrate pollution in shallow groundwater. The distribution of denitrifying bacteria showed obvious rhizosphere effect, and the higher biodenitrification in natural reed wetland was related to the distribution of denitrifying bacteria. There was a negative relationship between the nitrate-N concentration and the number of denitrifying bacteria in groundwater.

结果表明：芦苇区浅层地下水中硝酸盐氮仅为0.2~0.8mg/L，远低于湿地周围井水中硝酸盐氮质量浓度（大于20mg/L），芦苇湿地能够去除浅层地下水中硝酸盐污染；反硝化细菌在土壤中的分布呈现明显的根际效应；野生芦苇湿地较强的生物脱氮作用与反硝化细菌分布有关，地下水中硝酸盐氮含量与反硝化细菌分布呈负相关。

Plants were hydroponically grown in solutions containing 3 mM Ca(NO3)2 or 3 mM NH4NO3 as nitrogen source. Mature plants were harvested eight times in one day at a 3 hr. interval from 8:00PM Aug. 12 to 5:00PM Aug. 13. Diurnal variations of the shoot nitrate content were observed in either Ca(NO3)2 or NH4NO3 treatment. Shoot nitrate content of Ca(NO3)2 treated plants were higher than those treated with NH4NO3 at every harvest. The average shoot nitrate content of lettuce with Ca(NO3)2 was 0.68% of the dry weight, and it was 0.29% for the NH4NO3 treated lettuce. The fresh weight of the NH4NO3 treated lettuce were 1.43 or 1.2 fold heavier than those with Ca(NO3)2 treatment for shoot or root respectively.

R36品种以3mM硝酸钙(6mM N)或3mM硝酸铵(6mM N)处理，於8月12日下午8点开始采收，每隔3小时采收一次，采收至8月13日下午5点。3mM硝酸钙与3硝酸铵两种养液处理的地上部硝态氮含量皆有日变化，而且在8个采收时间，3mM硝酸钙养液处理的地上部硝态含量皆高於3mM硝酸铵处理。8个采收时间的硝态氮含量平均，3mM硝酸钙养液为乾物含量的0.68%，而3mM硝酸铵处理为0.29%。3mM硝酸铵养液处理的地上部与根部鲜重分别为3mM硝酸钙处理的1.43倍及1.2倍。

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

Evidence suggests that 1 under more stable stratification, the basic flow, if moving faster at low and high levels (particularly in the presence of jets there), allows a resulting meso-β unsteady wave to propagate eastward with respect to basic flow and even at greater velocity compared with it; 2 vertical windspeed shear of basic flow causes instabilities of the TWT perturbation; 3 considering the second derivative of basic-flow wind with respect to z (denoted by zz≠ 0 which is simply given as β* hereafter) the expression for the phase velocity of vortex Rossby wave is obtained, which is unidirectional in propagation with respect to basic flow; 4 VRoW has its physical origin from β*, i.e., from z-varying heterogeneities of y-direction averaged vorticity of the basic flow field; 5 VRoW phase velocity is associated with zonal wave number k, its energy is dispersive and the group velocity exists in the x direction; 6 when windspeed meets the condition of β*, TWT disturbance instability may be that of mixed VRoW and gravity wave; 7 if basic flow is subject to linear shear but does not meet the condition of β*, the TWT instability is that of inertia-gravity wave.

在大气层结比较稳定的情况下，如果基本气流在低层和高层较大(有可能存在低空急流和高空急流)，此时产生的β中尺度不稳定扰动相对于基流向东传播，甚至于快速向东传播。基本气流在垂直方向上的风速切变对于中尺度横波型的扰动起着不稳定的作用。如果考虑基流的二次切变，可以得到涡旋Rossby波的相速度表达式，涡旋Rossby波相对于基本气流是单向传播的。涡旋Rossby波产生的物理根源是基本流场的风速二次切变，亦即基本流场y方向的平均涡度在空间z方向上的不均匀所致。涡旋Rossby波的相速度与纬向波数也有关，它的能量是频散的，其在纬向x方向也存在群速度。在基本流场的风速存在二次切变时，横波型不稳定可能是混合的涡旋Rossby重力波的不稳定；而在基本流场的风速仅仅存在线性切变，不存在二次切变时，横波型扰动的不稳定则是重力惯性波的不稳定。

The author considers, the risks which basic pension fund operation faced is the main reason which influent the safety of basic pension fund. Comprehensibly, there are four kinds of risk: first, capture risk of basic pension fund; second, payment risk of basic pension fund; third, investment risk of basic pension fund; fourth, management risk of basic pension fund.

本文认为，影响我国基本养老保险基金安全运行的原因在于基金在运行过程中面临的各种风险，综合起来看，基金面临的风险主要有：1、基金的收缴风险；2、基金的支付风险；3、基金的投资运营风险；4、基金的管理风险。

It includes the company basic information module, the department basic information module, the staff basic information module, the customer basic information module, the driver basic information module, the vehicles basic information module, the cargo application information module, the cargo consign for shipment, the management mold block, the customer approval module, the physical distribution management system design The realization can meet the demand of the general logistics company.

贸易过程中的商品从厂家到最终用户的物流过程是客观存在的，长期以来人们从未主动地、系统地、整体地去考虑，因而未能发挥其系统的总体优势。为此，我这次毕业设计选择开发1个物流管理系统，设计主要是根据物流公司的基本流程进行的，旨在设计出1个方便、快捷，运营成本低，提高工作效率的物流信息管理系统。

Teaching purpose and task: Pass the study of this course, can make the student's basic knowledge system to the electronic commerce and the basic frame of the electronic commerces have a mostly of understanding;Control is mainly basic principle, basic operation method that aims at the course, request can the exactitude appreciate among them basic principle, to the basic operation method can in prescriptive time the exactitude complete,The point control is the important concept, idea, theories and methods for aiming at electronic commerce is, request can combine the example in the actuality to take into the application, and can put forward own standpoint, request to can synthesize the usage at the same time

目的任务：通过本课程的学习，可以使学生对电子商务的基本知识体系和电子商务的基本框架有一个大致的了解；掌握主要是针对课程的基本原理、基本操作方法，要求能够正确领会其中的基本原理，对基本操作方法能够在规定的时间内正确完成；重点掌握是针对电子商务中的重要概念、观念、理论及方法，要求能结合现实中的例子加以应用，并能提出自己的观点，同时要求能够综合运用。

Basing on describing the basic knowledge of school management system of Chinese basic education, this article bring forward some new ideas: first, the author dont simply discuss the theories on school management system of school management system of Chinese basic education from perfect situation, but combining the factual condition of school management system of Chinese basic education; second, the article analysis profoundly the problem of School management system of Chinese basic education; third, after discussing the reform mode of Chinese basic education, the author further advance to change the coverall and unchangeable school management system and set up the school management method, which call integral whole two lines.

本文在梳理我国基础教育办学体制的基础之上，也不乏创新之处：一是对我国基础教育办学体制改革的理论阐释不是简单从理想状况去推理，而是结合我国基础教育体制改革的实际进行了系统地说明；二是对我国基础教育体制改革所面临的问题进行了深层次的分析；三是在对我国基础教育办学体制的几种有益的探索进行剖析的基础上，试图探索对我国基础教育体制改革的模式，提出在改革&包揽封闭&的办学体制，构建&一体二线&的办学框架，并希望对我国基础教育改革有所启示。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"