查询词典 chemical method

At aim of getting the full 235 bp gene, five 50~70 bp model-based primers were first synthesized by chemical method followed by 3-step PCR amplification in an effort to ligate them into full gene.

为了得到目的肽全基因，首先合成5条50～70 bp互为模板引物的DNA片段，再通过PCR扩增将5条片段连接成全基因。

Anatise TiO2 nano-powder with high stability and high photocatalytic activity was prepared using precursor metatitanic acid raw material at mild reaction by chemical method.

使用简单的化学方法，以偏钛酸为原料，利用化学添加剂，通过酸碱作用，在较温和的反应条件下（常压、120℃之下），制备了具有高稳定性、高活性的锐钛矿型纳米TiO2粉体。

The high velocity arc spraying technology and powder-cored metal threads were bi-used to repair the waste components, and the integration between coating preparation and materials formation to Fe-Al base intermetallic compounds came true. A new supersonic ion spraying technique, named bi-channel, bi-temperature, was invented to solve successfully the issues of over-melting, half-cooked and burned materials. The high-energy mechanical and chemical method with own property right was explored to solve successfully the issue, which the nano particles dispersed evenly and suspended stably in the solution. After perfecting the techniques the high-performance co-electrodeposition between the conductive matrixes metal Ni and the nonconductive nano particles carried out. The excellent nano anti-friction self-repairing additives was prepared to achieve elementarily the self-repairing on the worn surface during the equipment worked.

首次将高速电弧喷涂技术与粉芯丝材相结合的方法应用于再制造零部件的表面修复，实现了Fe-Al金属间化合物的制备与涂层成形一体化；发明了一种&双通道、双温区&的高效能超音速等离子喷涂新工艺，解决了过熔、夹生及烧损问题；开发了具有自主知识产权的高能机械化学法，解决了纳米电刷镀时纳米颗粒在多离子溶液体系中的均匀分散与悬浮稳定的难题，通过工艺优化实现了非导电的纳米颗粒与导电的基质金属镍的高效共沉积；发明并制备了性能优异的纳米减摩自修复添加剂，初步实现了在装备运行过程中对磨损部位的原位动态自修复。

According to the characteristic of organic matter is liable to be oxygenated and decomposed,using the oxidability of peroxide synthesized by the BDD anodes used in the electrochemical to oxidative decomposes residue organic matter and coordinates with ultrasonic cleaning,combining with physical and chemical method,thus achieves,the goal of wiping off residue organic matter.

根据有机物易被氧化分解的特性，采用金刚石膜电化学法合成过氧化物，利用过氧化物的氧化性氧化分解硅片化学机械抛光后表面的有机物残留配合特选的表面活性剂，并加超声清洗，物理化学方法结合，从而达到去除有机物污染的目的。

Metallic nickel powder is taken as a matrix; a chemical method is adopted to prepare a product required by cladding ferrites on the surface of the nickel powder; the mass ratio of the ferrites to the nickel compound powder is between 1 to 5 and 1 to 0.01; the grain diameter of the nickel powder is 0.5 to 5 microns; the ferrites are ferrites of spinel type or ferrites of magneto plumbite type.

以金属镍粉作为基体，采用化学方法在镍粉表面包覆铁氧体层制得所需产品，铁氧体与镍复合粉体的质量比为1∶5～1∶0.01，镍粉粒径为0.5～5μm，铁氧体为尖晶石型铁氧体或磁铅石型铁氧体。

In order to research a poisonless and harmless chemical method to reducing harm of low temperature on almond during florescence, effects of BBA on cold resistance and fruit setting rate in almond were tested respectively in laboratory and field.

为了研究既能减轻杏树花期低温伤害而又无毒无害的化学防寒手段，就巴巴安在杏树花期的抗寒作用进行了室内试验，并就巴巴安对杏树坐果率的影响情况进行了田间试验。

This experiment which adopting technology of examination of muscle, utilizing modern organized chemical method, using scanning photometer, doing a eight-week staminal training towards six ordinary examinee, analyses the samples of the vastus lateralis of the right leg before and after the experiment.

采用肌肉活检技术，运用现代组织化学方法，结合扫描显微分光光度计定量的方法，对6名普通受试者进行8周耐力跑训练。

The surface of natural scale graphite was modified by wet chemical method using sulfanilic acid and sodium nitrite as raw materials,which could remarkably elevate the hydrophilicity of natural scale graphite.

以对氨基苯磺酸、亚硝酸钠为原料，对天然石墨鳞片表面进行了接枝改性处理，显著提高了天然石墨鳞片的亲水性。

The influence of binding of cisplatin adducts on tautomeric equilibrium of guanine was investigated using quantum chemical method. The monoaqua adduct [Pt(NH3)2Cl(H2O)]＋and the diaqua adduct [Pt(NH3)2(H2O)2]2＋were chosen for coordination to the N(7) site of guanine tautomers.

使用量子化学MPW1PW方法，优化了顺铂键连到DNA碱基-鸟嘌呤及互变异构体N7形成的配合物的构型，同时用MP2方法计算其能量，以研究顺铂对鸟嘌呤互变异构作用的影响。

Morphology of the EPCs was observed, and the growth curve of the EPCs was investigated. Surface antigens of the EPCs were analyzed by the flow-cytometer. The capability of intaking the acetylated low-density lipoprotein of the EPCs was detected using fluoresencent chemical method. The vasoformative capability and genetic stability of EPCs were cultured in matrigel, and examined by karyotype analysis.

观察培养细胞的形态，测定其生长动力学，采用流式细胞仪及免疫细胞化学方法检测其表型，应用细胞荧光化学法分析EPCs对乙酰化低密度脂蛋白(acetylated low-density lipoprotein， ac-LDL)的摄取功能，Matrigel上培养并检测其形成血管能力，染色体核型分析其遗传稳定性，裸鼠实验、软琼脂实验观察致瘤性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。