查询词典 venturi

To overcome the difficulties in measuring the oil-water two-phase flow,the oil-water two-phase flow regime was studied with a horizontal Venturi tube and a model of flow measurement was established.

针对油水两相流的测量难题，利用文丘里管对水平管内油水两相流流型进行了研究。基于差压波动信号，提出了Hilbert-Huang变换与支持向量机相结合的流型识别方法。

The subject of the mechanism-based emulsion formulated based on the theory, the ratio in the emulsion is to use part of the Venturi tube by high-speed water pipes in their place to produce negative pressure to suction up oil ratio of the working principle, and the higher degree of automation systems, the emulsion with the concentration can completely meet the "Coal Mine Safety Regulations" requirements.

本课题在基于乳化液配制机理的理论基础之上，在乳化液配比部分是利用通过文丘里管的高速水流在其喉管处产生负压将油吸上来的工作原理进行配比的，该系统自动化程度较高，所配乳化液浓度完全能够满足《煤矿安全规程》要求。

To overcome the difficulties in measuring the oil-water two-phase flow ,the oil-water two-phase flow regime was studied with a horizontal Venturi tube and a model of flow measurement was established.

针对油水两相流的测量难题，利用文丘里管对水平管内油水两相流流型进行了研究。

At first, the dynamic differential pressure signals coming from Venturi tube were processed by normalization and EMD. The Intrinsic Mode Functions which contained high frequency component were denoised by wavelet packet.

该方法首先提取气液两相流动态差压信号，通过EMD技术对其进行分解，对分解出来的高频模态进行小波包消噪，然后通过ICA技术实现原始信号的降维处理。

Flow regime and void fraction are important parameter in gas-liquid two-phase flow, the relation of differential pressure signal coming from Venturi tube and the flow regime of gas-liquid two-phase flow was studied in this paper, A kind of flow regime identification method of gas-liquid two-phase flow based on Hilbert-Huang Transform and fuzzy inference was put forward, the familiar flow regime identification of gas-oil and gas-water two-phase flow was achieved.

两相流动是一个十分复杂的过程，参数较多，检测相当困难。流型、空隙率是气液两相流中非常重要的参数，而且测量比较困难，还影响两相流其它参数的测量。

Three great mountains form a "Venturi tube", the prevailing west wind in high-altitude causes a "strong region" at the throttle-E.

三条大山脉在东径95°～105°，北纬40～45°之间形成&纹杜里管&的喉部，高空盛行西风在此处产生一个&强区&。

In view of high ammonia loss, tail gas washing section is improved. Absorbing ammonia in Venturi tube, first and second washing tower, the concentrated phosphoric acid is pumped to pipe reactor at the neutralization degree of 0.5; all spouts in washing towers are replaced by spiral spouts and equipment anticorrosion is finished. After improvement, the ammonia recovery rate is increased to over 95% from the previous 85%.

由于管式反应器工艺存在氨逸出率高氨损失大的弊端，提出改造尾气洗涤工艺：将用于生产DAP的浓磷酸全部先在文丘里，第一第二洗涤塔吸收氨后，将中和度0.5的浓磷酸洗涤液送管式反应器；各洗涤塔的所有喷嘴改造为不同型号的螺旋喷嘴；并注意解决洗涤设备的防腐问题改造后氨回收率由85%提高到≥95

The temperature of flue gas out of air preheater in boiler is normally about 120～180℃, the flue gas enter the absorb tower from the bottom via pre-deduster and is accelerated by venturi tube at the bottom of absorb tower, then is taken to circulating fluid bed. The materials are in the circulating fluid bed, due to the effect of flow, the gas-phase and solid-phase generate fierce turbulence and combination and are fully contacted, then form polymers constantly during the ascending and return downward, while the polymers are constantly disassembled during fierce turbulence and elevated by airflow, which makes the slip velocity between gas and solid reach the tenfold times of single slip velocity.

首先从锅炉的空气预热器出来的烟气温度一般为120～180℃左右，通过预除尘器后从底部进入吸收塔，然后烟气通过吸收塔底部的文丘里管的加速，进入循环流化床，物料在循环流化床里，气固两相由于气流的作用，产生激烈的湍动与混合，充分接触，在上升的过程中，不断形成聚团物向下返回，而聚团物在激烈湍动中又不断解体重新被气流提升，使得气固间的滑移速度高达单颗粒滑移速度的数十倍。

A fluid cartridge has a top wall to which the nozzle assembly may be secured, and a supply of pressurized air is connected to the nozzle assembly to draw fluid from the reservoir into the nozzle assembly through a siphon tube by a venturi action.

一流体储盒具有一顶壁，喷嘴组件可固定于该顶壁，一压缩空气供给源连接于喷嘴组件，用以通过一虹吸管利用文丘里作用将流体从贮存器吸入喷嘴组件。

The VENTURI TM power unit will automatically lock 1 minute after last button operation when running to prevent inadvertent vacuum level adjustment, indicated by 'L'on the display screen.

文氏管TM电源单元在最后一次点摁按钮（在显示屏上有'L'标记的按钮）后一分钟将自动闭锁，以防止疏忽调节真空压力。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。