查询词典 nitrogen

Objective To study dynamic change of carbon and nitrogen rate during the growing period of Ferula fukangensis.

目的研究阜康阿魏碳、氮代谢在不同生长时期的动态及挥发油和阿魏酸含量变化规律，为人工栽培提供理论依据。

Different nitrogen forms; Tall fescue; physiological and ecological index; regulations of heat tolerance

不同氮源；高羊茅；抗性生理生态指标；耐热性调控；抗热调控

The furnace protection process is optimized from the following ways: determining the best fettling time and location for various fettling materials,adjusting reasonably the component of end slag,improving slag splashing effect,regulating nitrogen pressure,meeting demands for slag splashing,and so the cost of furnace protection is reduced.

认真分析和实验，从三个方面对护炉工艺进行了优化：确认各种不同补炉料的最佳补炉时间和位置，合理调整终渣成分、改善溅渣效果，调整氮气压力，满足溅渣需求，对护炉工艺进行了优化，从而降低了护炉成本，取得了明显的经济效益。

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。

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％。