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Before repellency and anti-silverfish assay, the culture system for silverfish was established in this study. The best feeds for silverfish were cellulose and mixed feed in a 1:1 ration (the composition of mixed feed was milk powder: oatmeal: yeast= 1: 9: 9). Moreover, the hatching process was not necessary for the mature of silverfish eggs. According to the results obtained in the repellency assay, the essential oil of leaves and woods from C.

为了进行忌避和致死试验,本研究首先对衣鱼进行饲养及孵化条件测试,於实验后得知最适合衣鱼生长之条件为纸张纤维与混合饲料(酵母粉:麦皮:高蛋白=9:9:1)混合比例为1:1时之生长状况最佳;另外,衣鱼卵并不需要成虫的孵化,而虫卵的生活条件则与成虫一致。

So we have in the dissertation: 1. First we proposed the minimal singular blending function, and established the minimal singular blending functions of power form、Bernstein form and Bézier form.

提出了最小奇异混合函数,研究了它的建立方法,给出了各种形式的最小奇异混合函数,有幂形式、Bézier基形式及Bernstein-Bézier基形式。

Mixed monotone operator; Singular two-point boundary value problem; Generalized e-concave operator; Generalized e-convex operator; Mixed monotone multivalued operator; Fixed point

基础科学,数学,数学分析混合单调算子;奇异两点边值问题;广义e-凹算子;广义e-凸算子;混合单调多值算子;不动点

By synthetically analysizing the physical and chemical properties of all components and particle size, the content of F2641 in the JOB-iC is determined by gravimetric analysis after F2641 is seperated from HMX,TATB and PNP through ? alkali reflux. Determination conditions is set as follows the sample is boilingly refluxed for six hour in a constant temperature bath after adding lOOm! 8.0 ?? 0.1% NaOH. The solvent DMF saturated by TATB is used for extracting HMX,F21 and PNP from the sample and TATB is seperated by crucible filter G4. The mass precent of TATB is determined by extraction fractionation. The mass percent of PNP is measured by multiwavlength linear regression ultraviolet spectrophotometry. The testing conditions are set as follows:multiwavlength constitution: X=267nxn, 275nm, 283nm, 29mm, 299nm,the application scope of the Lambert-Beer law: the concentration of PNP is O.005?0.O25mgIml, the concentration of HMX is 0.060.3Omg/ml,absorption coefficents of PNP and HMX are solved by the slope of linear regression curve of absorbency- concentration of standard solution of PNP and HMIX for measuring wavelengthes,on the basis of the Lanibert-Beer law and absorbancy additivity principle, the slope of linear regression curve of A/E(1) and E1 of PNP and HMX solution is regarded as the concentration of PNP in the solution.

根据传爆药中各组分的物理、化学性质及主体炸药的粒度大小,进行综合分析,确定了采用碱回流重量法测定JOB-1C 中F_(2641)的含量,测定条件:加入100ml浓度为8.0±0.1%的氢氧化钠,在恒温水浴中煮沸回流6h;采用溶剂萃取法测定JOB-1C中TATB的含量,选择TATB饱和的二甲基甲酰胺为萃取溶剂,用G4坩埚式过虑器进行萃取分离;采用多波长线性回归紫外分光光度法测定JOB-1C中PNP的含量,通过实验确定了多波长组合:λ=267nm,275nm,283nm,291nm,299nm;朗波—比耳定律的适用范围为PNP浓度:0.005~0.025mg/ml,HMX浓度:0.06~0.30mg/ml;在测定波长下,对PNP、HMX标准溶液的吸光度—浓度进行线性回归,由回归曲线的斜率得出PNP、HMX的吸收系数;根据朗波—比耳定律和吸光度加和性原理,在测定波长下,对PNP、HMX 两组分混合溶液A_i/E_HMX(i与E_PNP(i/E_HMX(i进行线性回归,回归曲线的斜率即为混合溶液中PNP的浓度。

The mixed solution of sodium nitrate and aluminium nitrate is added to thequartz raw materials, and then the mixture, is.

在石英玻璃原料中加入一定浓度的硝酸钠和硝酸铝混合溶液,进行高温处理,使石英中杂质转变成易溶于混合酸或水的物质,实现了杂质与石英基体的分离,从而达到用低纯度的石英原矿生产高纯度的石英玻璃原料的目的。

As you saw the iron mixed with soft clay, so they will mix with one another in marriage, but they will not hold together, just as iron does not mix with clay.

正如你看到铁混合与软粘土,所以他们将组合与一的另一个在婚姻,但他们不会维系,正如铁不与粘土混合

M15 (methanol 15%, diesel 85%) and M30 (methanol 30%, diesel 70%) methanol/diesel fuel blends are tested in ZS1100 DI diesel engine. The study contents include load character, NO emission and smoke emission test. In addition, the solidifying point of the fuel blends is tested and the cost is estimated.

在ZS1100直喷式柴油机上,用自行配制的M15、M30甲醇-柴油混合燃料与纯柴油做了对比试验研究,进行了负荷特性、NO和碳烟的排放对比试验,还进行了混合燃料的浊点测试和成本估算。

The conclusion was drawn by the synthesis of molecular sieve: after mixed soluble glass and aluminium sulfate with proper proportion under room temperature, it was stirred stormily to react. And then we mixed with potassium hydroxide solution after filtrating. At last, the molecular sieves of potassium type was synthesized after the mixture reacted in the oven or autoclave for 24 hours. The molecular sieve was remodeled more than twice with ammonium chloride solution that the concentration was 3mol/L and then remodeled twice with the saturated sodium chloride solution. Finally the molecular sieve was changed into the sodium type. It was named W zeolite.

通过对分子筛的合成得到:以泡花碱、硫酸铝为原料,以硅铝比按一定比例于室温下将二者混合,激烈搅拌,抽滤后与氢氧化钾溶液混合放于烘箱或高压釜中高温晶化24小时,晶化后的分子筛为钾型,先后用3mol/L氯化铵溶液和饱和食盐水各对其改型两次以上,最后改为钠型,可制得W型沸石分子筛。

During the reaction,the bromide component has been converted to catalytically inactive benzylic bromide.In pure acetic acid medium,the "catalyst failure" occurs owing to the formation of benzylic bromide while in acetic acid-water medium,the solvolysis of benzylic bromide by water maintains the catalytic activity to some extent.

反应过程中溴组分会转变为无活性的苄溴,在纯醋酸溶剂中,催化剂会因苄溴的形成而发生催化剂失活现象;在醋酸-水混合溶剂中,由于水对苄溴的溶剂化作用会使苄溴还原为溴离子,一定程度上保持了催化剂活性;并且在一定范围内,含水量的提高有益于生成醛选择性的提高,研究表明,将混合溶剂的初始含水量控制在5-10wt。

I would mix in a hunk of the previously mixed, week old dough to enhance the sourdough development.

我会混合在一个以前混合,周老面团大块,以提高拓荒者的发展。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力