查询词典 solution formula

In the chapter 3,we base on the existence of periodic solution ,using the method of linearization and applying the mean value theorem and the variation-of-constants formula, we get the sufficient condition of the exponential stability of periodic solution of a class of nonlinear functional differential system .

在第三章中，建立在系统周期解存在的基础上，利用线性化的方法，根据微分中值定理和常量变差公式，得到了一类非线性泛函微分系统周期解指数稳定的充分条件。

The EF8108 series were added to glyphosate aqueous solution,the optimum formula was obtained from orthogonal test.The properties of EF8108 series and 41%glyphosate aqueous solution containing the above aids were tested.The properties of EF8108 series were compared with that of similar products.

将EF8108系列助剂配成草甘膦水剂，根据正交试验结果，得出EF8108系列助剂的最佳配方，测试EF8108系列助剂及由其配成41%草甘膦水剂的性能，并将EF8108系列助剂的性能与其它国内外同类产品进行比较。

On the basis of the data of 31 experiments on the system of binary solution,the paper offers a formula for calculating the solution refractivity , which can be applied to a non-ideal system with less deviation.

本文在31个二组分液体混合物体系实验数据基础上，提出一个计算溶液折射率的公式。

Mechanism of the components in antirusting solution for large steel structurepretreatment of coating was investigated and the solution formula was optimized.

研究了防锈液中各成分的作用机理和最佳配方，适用于大型钢结构的涂装前处理。

In this paper, by using the method tO get the arithmetic solution and with the formula calcuatring the moving particle trace in magnetic field, corrected be computer, it is easy to get the arithmetic solution, in addition,the result of solving is giv...

本文用求数值解的方法，使用经过计算机修正后的计算磁场中粒子运动轨迹的公式，可以非常迅速、简单地得到带电粒子在磁场中运动轨迹的数值解，并以图像给出解的结果。

The results indicated that formula of low concentration nutrient solution (EC=1.376×10^3μs/cm) was adapt to soil culture and high concentration nutrient solution (EC=2.168×10^3s/cm) was adapt to modes of hydroponic culture and ceramicite culture for ornamental tomato.

结果表明：采用土培方式栽培观赏番茄宜选用低浓度的营养液配方(EC=1.376×10^3μs/cm)，采用水培、陶粒培方式栽培宜选用高浓度的营养液配方(EC=2.168×10^3μs/cm)；家居栽培观赏番茄宜选用陶粒培方式，并选用高浓度的营养液配方EC=2.168×10^3μs/cm）。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

The results showed that stripping rates were strongly dependent on the concentration of H2O2 in alkaline solution and also affected by the crystal structure of TiN film. The aim of this study was to provide a formula solution for removing TiN film without damaging the substrate surface.

实验结果显示，碱性过氧化氢水溶液为蚀刻主要因子，并由此研究提供最佳之溶液组成配方，以达到去除氮化钛薄膜之应用，且在不损伤基材表面下完成。

King-used washing machines Lower absorption law, the use of detergent added to the aqueous solution is in use at the same time fume emission will usually automatically with the aqueous solution of emulsifying oil mist and saponification reaction also been placed material washing down fuel from combustion of hazardous substances and cooking process generated fumes from aqueous solution by the majority and purification.

水帘式净油烟机采用洗涤吸收法，利用添加有洗涤剂的水溶液，在吸排油烟的同时自动将雾化的水溶液与油雾发生乳化和皂化反应，烟尘也同时被润湿洗涤下来，燃料燃烧时产生的有害物质及烹饪过程中产生的油烟绝大部分被水溶液中和净化。

The Frechet derivative of the cost function is determined via the solution of an adjoint partial differential equation, and the boundary shape is then modified in a direction of descent. This process is repeated until an optimum solution is approached. The advantage is that the cost function variation is independent of the flow field variation, with the result that the gradient of cost function with respect to arbitrary number of design variables can be determined without the need for additional flow-field evaluations. So each design cycle requires the numerical solution of both the flow and the adjoint equations leading to a computational cost roughly equal to the cost of two flow solutions.

虽然他们的研究成果大多数都可以在公开性文献上看到，但是其中一些具体的细节问题的处理方法却没有透露，比如：伴随方程如何离散求解才能减小最终梯度计算中的误差，使得设计过程有效地进行；伴随方程与流动方程的边界条件是不同的，如何合理地处理伴随方程的边界条件，才能推动设计过程朝着设计目标而发展；在减阻问题中目标函数如何定义，求解梯度的具体数学公式如何推导，如何通过数值方法来实现它们等。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。