查询词典 chemical method

To solve the difficulty in modeling a chemical system a new node granularity transformation method based on object directed acyclic graph was proposed.

针对化工系统模型难以确定的问题，提出了基于对象的有向无环图节点粒度的转换方法。

According to GB5888-89《Quantitative analysis method of China grass's chemical Content》, the composition of cotton-straw peer is analysed. The results show that the cotton-straw peer contained 2.36% of adipocere, 19.54% of water-soluble, 3.34% of pectin, 25.88% of hemicellulose, 25.32% of lignin, 23.65% of cellulose.

按照GB5888-89《苎麻化学成分定量分析方法》对棉秆皮成分进行测定，得出棉秆皮中含脂腊质2.36%，水溶物19.54%，果胶3.34%，半纤维素25.88%，木质素25.32%，纤维素23.65%。

In this thesis, the research and the development of electromagnetic safety materials have been reviewed. On the basis of the theory of the electromagnetic field, the electromagnetic wave and the interaction between the materials and the electromagnetic wave, several kinds of new composites have been prepared by adopting new methods, electroless plating and a kind of method of Fe replacement chemical aggradation, and studied by advanced measuring and analyzing components.

对电磁防护材料的国内外研究现状进行了研究，从电磁场与电磁波理论及电磁波与材料之间的交互作用出发，采用新的思路和方法，采用化学镀和一种Fe置换化学沉积法制备了新型的电磁防护材料，并采用先进的测试分析手段研究了材料在2～18GHz电磁波频段范围的电磁波吸收性能和在100KHz～1.5GHz电磁波频段范围的电磁波屏蔽性能。

An alternate method that many pond owner prefer is to add a chemical algaecide like PondCare's Algae Fix.

候补方法，许多池塘主人喜欢的是添加一种化学除藻等pondcare的藻类乌龙。

The aliquot was determined and confirmed by gas chromatography-negative chemical ionization mass spectrometry using external standard method.

样品中三唑醇残留物由正己烷饱和的乙腈(含1%冰醋酸)提取，加入无水硫酸镁与无水醋酸钠振荡促使提取液分层后进行固相分散萃取净化，用气相色谱-负化学离子源质谱法进行测定与确证，外标法定量。

All kinds of the detected and analyzed has proved that the analyzer has high accuracy with the error within the allowable range compared with the result of chemical analysis method , what's more, it is so quick that it only takes just 15 min.

多种检测试验及实际分析应用证明，其检测准确度高，与化学分析法测试结果的误差值均在化学法的允许差之内；且检测速度快，从样品处理到检测结果仅需15min。

And electrolysis method using chemical precipitation of copper from copper ammonia water waste.

本文采用化学沉淀法和电解法从铜氨废水中回收铜。

In accordance with the principle of chemical dynamics, a new evaluation method for rate of ammonification of urea was established, and the type of reaction of ammonification of urea was confirmed.

根据化学反应动力学原理，建立了尿素氨化速度的评价方法，确定了尿素氨化反应的级数，测定了普通尿素、缓释尿素在特定条件下的氨化反应常数和半衰期，并依此评价了涂层缓释尿素的缓释性能。

On the basls of analyzing the characteristics of electric-chemical of I,ead-acid battery, a state of charge indicator for lead-acid battery is developed for eiectricvehicles implying an algorithm based on combination of Ampere-hour, Peukert's e-quation and open-voltage method with compensation of temperature, aging and self-discharging and etc.

在对铅酸蓄电地基本电特性研究分析的基础上，开发了一种以安时-Peukert公式-开路电压法为基本算法的电动汽车剩余容量计。

It using the system security analytic method. The appraisal index system had been designed before. It guaranteed the systematic characteristic, and integrity of this system, avoiding the omission and negligence. The practical application proved that this safety appraisal can used to dangerous chemical enterprises.

4本文所研究的评价指标体系是运用系统安全分析法事先设计的，保证了评价指标的系统性、完整性，避免评价时可能会造成的遗漏和疏忽，经实际应用表明，可用于对危险化学品生产企业进行安全评价。

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％。