查询词典 recirculation

Such processes usually need the recirculation of nitrified wastewater or the addition of external organic carbon and alkalinity. The investment and operation cost is high, and the land occupied is large.

这样的工艺存在需进行硝化液回流或外加有机碳源和补充碱度，运行费用高，占地面积大，投资高等问题。

Based on the technology of exhaust gas recirculation, a new method for increasing thermal efficiency of a diesel hot air stove from a greenhouse was proposed.

针对目前使用的温室柴油热风炉存在的热利用率低和排放污染问题，提出了利用废气再循环技术来提高柴油热风炉热效率的方法，并研制出一种适用于温室内应用的全数字式智能监控柴油热风炉 EGR热交换设备，并阐明了其结构及工作原理。

Slab continuous casting ; mold ; argon blowing ; single and double recirculation flow pattern ; numerical simulation

板坯连铸；结晶器；吹氩；单双循环流；数值模拟

The formed conditions of a single and double recirculation flow pattern in a slab continuous casting mold with argon blowing were quantitive described using the Lagrange multi-phase flow model,and the prediction was validated by the water model.

使用Lagrange流体模型和水模实验对吹氩板坯连铸结晶器内单双循环流的形成条件进行了定量研究。

The formed conditions of a double-recirculation flow pattern in a slab con- tinuous casting mold with blowing argon gas were quantitive described using the Lagrange multi-phase flow model,and the prediction was validated by the water model.

利用Lagrange两相流模型定量研究了吹氩板坯结晶器内双循环流形成条件，并用水模型检验了数值模拟结果。

At the end, the boiler thermodynamic calculation of SG-1000 boiler with 5% flue gas recirculation and HG-200/100-10 boiler are carried out by this software and get their thermodynamic calculation result with rated load.

文中最后用采用5%烟气再循环的SG-1000型锅炉和HG-220/100-10型锅炉完成了对软件的测试，得出了各自额定负荷下的热力计算结果。

The nozzle of the gasifier is simplified. The cold-flow field in the gasifier chamber is studied. The research shows that the chamber has recirculation along the whole length. The particles in the chamber perform a very good flowing characteristics even for the large particles of dp=150μm, and no abrupt change is observed. This is due to the operational pressure is high and the density of the gas is large there. The maximal reflux velocity of both phases, the reflux intensity, the concentrational distribution of particles, and the static pressure loss in the chamber are all related to following factors: the load of gasifier, the concentration of coal-water slurry, the diameter of the coal particle, the distribution ratio of oxygen in the two channels of the nozzle, and the angle of jet in nozzle.

本文对水煤浆气化炉喷嘴进行了简化处理，在此基础上，对气化室内的冷态流动过程进行了研究，发现：整个气化室都处于流动的回流区长度范围以内；水煤浆气化炉中，由于操作压力很高，气相密度很大，所以即使对于dp=150μm的较大煤颗粒，其对流体的跟随特性也很好，没有发生流动特性突跃的现象；两相的最大回流速度、回流强度，颗粒相的浓度分布，以及气化室内的静压力损失等，均与气化炉的负荷、水煤浆浓度、煤粒直径、O2在喷嘴两个流道中的分配比例、以及喷嘴的射流角等参数有关。

According to pump head adjust pump discharge and recirculation valve to keep pump discharge pressure within proper range.

根据泵的扬程调节泵出口阀及回流阀，使泵出口压力保持在适当的范围内。

The results of continuous experiments with BAF show that: the short nitrification occurs when the Qair/Qinfluent ratio is 4:1 with NO_2~--N accounting for 72% of NOx--N; the suitable recirculation rate is 200%; the ratio of external acetate dose to NH4+-N concentration is 2:1 attributing to the short nitrification; BAF needs being backwashed when the headloss increases to 6 cm every 17~20 days; in the water reuse context, 98.7% water yield can be obtained.Lastly, the long-term operation of SBR-BAF system indicates it can treat the wastewater efficiently.

BAF反应器连续流试验结果表明：最佳气水比为4：1，硝化类型以短程硝化为主，NO_2~--N占到NOx--N的72%；综合考虑对TN的去除率和动力消耗，最佳回流比为200%；最佳缺氧/好氧容积比为3：5；由于短程反硝化较全程反硝化碳源需求量低，在BAF反应器进水NH4+-N 40mg/L左右的情况下，乙酸钠投加量为80mg/L以COD计设定水头损失达到6cm时进行反冲洗，随水温不同，反冲洗周期为17~20d，产水率为98.7%。

Establishing the best prescription of Xionggui nasal sprays through orthogonal design methods,The in vitro release action of Xionggui nasal sprays was studied using dynamic dialyse method.The in vivo rat nasal recirculation methods were used to study the rule of Xionggui nasal sprays absorption.

采用正交设计对芎归鼻用喷雾剂进行处方筛选；通过动态透析法考察其在Ringer液中的释药特性；通过在体大鼠鼻黏膜吸收试验考察其在体吸收特性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。