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Responsible for lab facilities periodical inspection and maintenance, such as fume hood, scrubber, constant humidity and temperature AHU etc

负责化学实验室通风设施如通风橱,除尘器,恒温恒湿空调箱的定期检查和初步维护

In addition, the ventilation e2ciency, local mean age of air and other characteristic parameters were experimentally and numerically obtained for a mock-up classroom ventilated with the two systems.

另外,通风e2ciency,当地平均年龄航空等特性参数进行了实验,并取得了数值模拟出教室通风与两种制度。

At the same time, the cold and dry air has the effects of dehumidifying and ventilating.

利用井下作业所用高压空气作为膨胀工质,通过透平膨胀机等熵膨胀降温后送入独头掘进工作面,即可达到降温除湿的目的,又通过引入新风提高了空气含氧量,具有较好的局部降温通风效果,克服了单纯通风方法无法降温和一般机械制冷方法无法通风的缺点,有效解决深井平巷独头掘进工作面的局部高温热害问题。

At present, common tunnel construction ventilation methods include natural, pressing, drawing, composite and gallery ventilation , while the gallery ventilation is specially suitable for super long tunnels that are constituted of parallel adits.

目前常用的隧道施工通风方法有自然通风、压入式、抽出式、混合式及巷道式通风法。

The main products of a furnace, lime kiln, gas stoves, smelting, sulfuric acid, flotation, oxidative desulfurization, airway, sewage treatment, Low Noise dust, lasers, air conditioning, ventilation oil depots, grain storage ventilation, food delivery, Coke oven gas, boilers, sintering, Low Noise ventilation series of general-purpose and high temperature, anti-corrosion, explosion-proof, wear-resistant series of special purpose fan, also based on user needs and the design and manufacture the necessary parameters for the fan.

主要产品有化铁炉、石灰窑、造气炉、冶炼、硫酸、浮选、氧化脱硫、气道、污水处理、低噪除尘、激光、空调、油库通风、粮库通风、粮食输送、焦炉煤气、锅炉、烧结、低噪通风等系列一般用途和高温、防腐、防爆、耐磨等系列特殊用途风机,亦可根据用户需要设计制造所需参数及用途的风机。

This study considers the effects of ventilation system using the residential facilities to the transmission mechanism of indoor aerosol in the residential quarantine period space for infective diseases. This study focuses on the effect of the design of ventilation system on the internal flow field and the removal of contaminant pollution. A computational fluid dynamics software-FLUENT 6.2 is employed to simulate the internal airflow field of the residential quarantine period space. The Carbon dioxide (CO2) is adopted as the index of contaminant source. Three layouts of ventilation system are simulated and the airspeed field, the temperature distribution, and the contaminant distribution are analyzed to find the best ventilation system for the residential quarantine period space.

本研究考虑传染性疾病在居家隔离空间使用一般家用环境控制设备时对室内的气悬感染会有何影响,本文主要分析不同通风设计时对居家隔离空间内部气流之影响,并将国内外现有的规范设计方式做一系列之比较以供参考,并以商用套装软体FLUENT6.2分析居家隔离空间内部流场分布情形,模拟中以二氧化碳(CO2)作为病患所呼出含有病菌空气的指标,模拟案例分为三种主要的通风模式,并分析速度、温度与污染物浓度分布情形,以得到最佳的居家隔离空间通风配置方式。

This design method can provide a probably value of supply air volume of displacement ventilation in shopping mall at initial design stage. Or this design method can provide an initial value for CFD design.

对于商场的置换通风设计,本文的通风量计算公式可以给出一个初步的数值,该值可以用于商场置换通风系统的初步设计或者作为商场的置换通风CFD设计的边界条件。

Ventilating skylight, blinds series: ventilation lighting equipment, streamlined roof ventilators, JF BC, Manual, fixed, electric blinds series.

通风天窗、百叶窗系列产品:通风采光设备、流线型屋顶通风器、 JF BC、手动、固定、电动百叶窗系列产品。

In the thermophilic stage, both the duration of high temperature and the distribution of pile temperature in Pile Ⅱ with time control aeration mode were better than those in Pile I with time-temperature control aeration mode.

在高温持续时间和温度分布均匀性方面,采用时间控制通风的堆肥方式优于采用时间-温度联合控制通风的堆肥方式,但过高的温度(60~70℃)不利于堆体中水分的去除和有机质的生物降解在高温堆肥阶段,通过改变通风时间,2种控制方式的堆肥过程均出现了2次高温期,这更利于堆肥的无害化。

In the following, the paper lists node flux balance equation group and loop pressure balance equation group, based on law of conservation of mass and law of conservation of energy, and the relation between flux and pressure elicits, using the law of branch ventilation resistance and the relation of fan performance.

本文根据水电站地下洞室群通风系统的特点,提出了进行节点、分支划分与网络图绘制及分支阻抗计算的原则和方法,利用图论的相关理论将通风系统转化成为点和有向线段表示表示的,并且各个分支影响空气流动的因素由分支的阻抗表示的水电站地下洞室群通风网络图。

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万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

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