查询词典 chemical method

Sometimes this method is referred to as naturally decaffeinated because ethyl acetate is a chemical found naturally in many fruits.

有时，这种方法被称为自然咖啡因因为乙酸乙酯是一种化学物质，自然在许多水果。

So C. cathayensis exocarp could be used to synthesize potassium pyrophosphate. Some technical conditions of preparing pyrophosphate potassium were studied by chemical synthesis method.

以山核桃外果皮消化后的灰分为原料，采用化学合成法对制备焦磷酸钾的工艺条件进行了研究。

Based on LSER method, the relationship between the acute toxicity of 26 substituted aromatic compounds on Photobacterium phosphoreum, Daphnia magna and fathead minnow and their theoritical solvatochromic parameters, the high correlation were found, it provided an example to introduce the quantum chemical parameters into QSAR study.

以线性溶剂化能相关理论为基础，利用理论溶剂化参数分析了26种取代芳香化合物对呆鲦鱼、发光菌和大型蚤的急性毒性，为成功地将量子化学参数引入QSAR研究探寻了一条新路。

This paper analyzes the physical and chemical characteristics of the second resource of ferric oxide and argues that utilizing this resource is a good method for developing ferrite magnetism material .

文章分析了氧化铁二次资源的物理、化学特性，指出利用这种资源开发铁氧体磁性材料是发展综合利用的有效途径。

Keywords Spheroidal graphite malleable;Chemical composition;Graphitization time;Kinetics equation;Regression analysis;Ferritization rate;Measuring method;Tace element

球墨可锻铸铁；化学成分；石墨化时间；动力学方程；回归分析；铁素体化率；测量方法；微量元素

A two-scale k-ε turbulence model was adopted to calculate turbulent velocity field, and the probability density function method was combined with the Lagrangian flamelet model to predict the turbulent scalar fields.Detailed chemical reaction mechanism GRI-Mech 3.0 was incorporated to describe methane oxidation and nitrogen oxides formation.

采用一个双尺度的 k-ε湍流模型计算速度场，将概率密度函数方法和Lagrangian火焰面模型相结合求解标量场，燃料甲烷的氧化过程和氮氧化物的生成过程采用详细的GRI-Mech 3.0机理描述。

The method is good for quantitative analysis of flax fiber chemical composition.

本方法是一种对亚麻纤维进行化学成分定量分析的好方法。

Chemical fire prevention is a advanced and efficient method which is the development trend of world forest fire prevention.

采用化学方法防火灭火是一种先进、高效的手段，是世界森林防火的发展趋势。

Application method: Take the automobile windshield size as the example, when first use the blue clear glass will guard against the fog frostproof cleaning liquid to spurt evenly executes in the glass surface, latter evenly with towel or with together hand towel chemical fiber class material for good

使用方法：以汽车挡风玻璃大小为例，第一次使用时将碧清玻璃防雾防冻清洁液均匀喷施在玻璃表面，后均匀用毛巾或用一块方巾（化纤类材料为佳，如餐厅的消毒由大小即可）擦拭在玻璃上即可。

Chemical gelatinization could be an effective method in studying the granular structure of acetylated starch.

研究表明，化学糊化法可以作为分析乙酰化淀粉颗粒结构的有效手段。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。