查询词典 nitrogen-free

By means of analyzing the solubility and solubility rate of gas in water, and making application of double-film theory and Fick's law, the solubility rate of nitrogen in water is theoretically calculated in ga.

通过对气体在水中溶解度和溶解速率的分析，应用气体溶解速率的"双膜理论"和气体扩散的"菲克定律"，从理论上计算出气密性试验中的氮气在水中的溶解速率。

After 30 D of the Chen Fang in nitrogen, common film and compound and filmy relative intensity of fluorescence all dropped only 10%.

在氮气中陈放30 d后，普通薄膜和复合薄膜的荧光强度均仅下降了10%。

The results indicate that the first derivative spectra are significantly correlated to nitrogen content.

用"秀水110"建立诊断模型，再用"协优9308"进行检测，分析一阶导数光谱与叶片氮含量的相关性。

Endures solvent BW- I type heavy nitrogen sensitization glue fitting be used for electron, Appearance, Porcelain enamel, Glass, Leather wait for oil dissolve sex print materical, Endures water property BW- II type fitting is used for cotton goods, Sheet fiscal stamp wait for water solubility printing materical, BW- III type fitting be used for china and glass applique silk screen print usage.

耐溶剂BW-I型重氮感光胶适用于电子、仪表、搪瓷、玻璃、皮革等油溶性印料，耐水性BW-II型适用于棉织品、纸张印花等水溶性印料，BW-III型适用于陶瓷和玻璃贴花丝网印刷使用。

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。

PDF method ; bluff-body stabilized non-premixed flame ; nitrogen oxides ; laminar flamelet model

概率密度函数方法；钝体驻定扩散火焰；氮氧化物；火焰面模型

When heterotrophic bacteria were washed out while autotrophic bacteria were accumulated, the sludge mainly was bacilliform floccule, but the sludge was petallike when the steady nitrification was set up and part nitrogen removal function was reached. The lack of organic carbon source made autotrophic bacterium become the dominates and the microbial community structures become simple.

经过成功启动并稳定运行后，单级自养脱氮系统内随着反应器内有机碳源的减少，系统中自养细菌在同异养细菌的竞争中逐渐占据优势地位，适应能力较弱或对有机碳源量要求较高的异养细菌则被大量淘汰，微生物群落结构与接种污泥相比已变得简单且较稳定，种群多样性降低。

The factors included the type of extractant, the amount and the extraction times, the type of purified column, the type and dosage of eluviatant about the pre-treatment of the samples. The extraction was 3 minutes (13500rpm) of high speed homogenize extraction. 50mL acetonitrile as an extractant was acted on one time extraction. The florin silicon column was taken as the purified column. The extraction was eluted by 30ml 3:2 acetone - hexane and concentrated by nitrogen blowing under 50 °C water bath.The chromatographic separated conditions were studied applied the Agilent 6890 gas chromatographic apparatus and DB-17 capillary column(30m×0.25mm×0.25μm).

研究了提取剂种类、用量与提取次数，净化柱种类，淋洗剂种类与用量，提取方式与提取时间，柱温和柱流量等因素对油菜籽中有机磷农药残留提取、分离净化和色谱分离的影响，建立了采用高速匀浆提取方式提取3min13500rpm.min~(-1，以50mL乙腈为提取剂一次提取，以弗罗里硅柱为样品液净化柱，以30mL 3：2丙酮-正己烷为淋洗剂，在50℃水浴条件下用氮吹浓缩，气相色谱检测的油菜籽有机磷农药多种残留检测技术。

It provided a whole set of technical scheme and operating flow sheet for nitrogen and phosphorus removal and effluent up to standard.

城市污水厂工艺模型的发展，尤其是活性污泥模型的发展为污水厂工艺优化改造、工艺设计提供了一个很好的平台。

In order to improve this situation, we implanted applicable dosages of nitrogen and fluorine into the gate.

为了改善此情况，我们在闸极上布植适当剂量的氮、氟离子。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。