Axial flow fan is the main ventilation device presently. This paper introduces the application of axial flow fan, settles saving energy problem and air regulation problem.
目前轴流式通风机在煤矿是普遍的主通风设备，文章阐述了变频器在轴流式风机中的应用，以解决主扇调整风量和节能降耗的问题。
The system is designed as circulation absent and A-A VF controlled one, in which a responsive motor driving the main ventilation fan is controlled in a vector control technology without speed sensor.
系统采用无环流交-交变频控制方案、应用无速度传感器的矢量控制技术对拖动煤矿主扇风机的感应电动机进行控制。
They put in metal beams to support the tunnel as it ran under one of the country's main highways, and they installed lighting and ventilation.
他们在地道里搭建了钢管用以支撑这条穿过了一条国家的主干道的地道，还在地道里安装了照明和通风系统。
The main fuel tank must have all the following: a filler tube, a ventilation system, fuel pickup tube and filter, plus a gauge-sending unit.
油箱必须装备以下元件：加油管、油箱通风系统、吸入管、滤清器和油量传感装置。
The main method of passive cooling — natural ventilation — is the focus we pay attention to.
建筑被动式降温的主要方法——自然通风，更是我们关注的焦点。
There are three main research methods in natural ventilation: simple theory analyse method, experimental method and numerical simulation method.
目前自然通风主要有三种研究方法：简单的理论分析法、实验法和数值模拟法。
At present, the main technologies for controlling coal gas are physical methods such as ventilation and exhaustion; however, these methods could not fully meet the safety requirements.
目前，我国的煤矿瓦斯防治技术主要为通风、抽放等物理方法，该类方法仍不能完全满足防治煤矿瓦斯灾害的安全要求。
The ventilation and air-cooled air conditioner equipments are the main components of large-scale power station equipments and their service life would relate directly with the power station operation.
大型电站的通风及空冷空调设备是电站设备的重要组成部分，它的使用寿命直接关系到电站的运行情况。
Therefore, suctioning is the main task to nurse the patients on mechanical ventilation.
因此，吸痰是护理机械通气患者的主要技术操作。
The main living room sits between the colonnade and the courtyard, allowing plenty of natural daylight and ventilation.
主起居室设置于柱廊和庭院之间，拥有充足的自然光和通风。
The main causes of the accidents were poor ventilation(22.5%), lack of personal protection equipment(19.8%), lack of safety education (19.8%), and lack of safety work practice(15.3%).
导致中毒事故发生的主要原因是没有密闭通风排毒设备或效果不好（22．5%）、没有个人防护设备（19．8%）、缺乏安全教育（19．8%）和没有安全操作规程（15．3%）等。
Our main products include central air conditioning, ventilation, heating system supporting Automation and control products.
公司主要产品有中央空调、通风、采暖系统配套的自动化控制系列产品。
The economic reasonabless of mine main fan ventilation and measures of saving power are expounded in the paper.
阐述了矿井主扇通风的经济合理性及节约主扇电耗的措施。
It is main research method to apply the CFD technology to carry on the numerical simulation for hybrid ventilation system.
应用CFD技术对混合通风系统进行数值模拟成为混合通风的主要研究方法。
The excavation technique consists of main operations including breaking, loading, haulage and support, and auxiliary work including ventilation, laying the track, digging ditches and laying pipes etc.
掘进工艺包括主要作业和辅助作业，其中主要作业包括破岩、装岩、运输、支护，辅助作业包括通风、铺设轨道、挖掘排水沟、铺设管线等等。
Based on the technical ventilation measurement, the stability, resistance distribution, and characteristics of main fans of the ventilation system in Qinan coal mine are analyzed in detail.
笔者在祁南煤矿通风技术测定的基础上，对该矿井通风系统的稳定性、通风阻力分布情况和主要通风机工作性能进行了详细分析。
The mechanisms of the noise generated in mine ventilation system, mainly in ventilators and electric motors, are analyzed in detail main measures and ways of noise controlling are put forward.
就矿井通风系统(主要针对通风机、电动机)噪声产生的机理进行了较深入的研究分析，并提出其噪声控制的主要措施与途径。
Results Mechanical ventilation, intubation and duct for ventilator are the main reasons of nosocomial infection.
结果机械通气、气管插管、气管切开、呼吸机管道等易引发医院感染。
The paper analyzed the main electric equipment of HVAC (Heating, Ventilation and Air Conditioning) apparatus and introduced structural principle of the auxiliary power system for EMUs.
分析了动车组空调装置的主要用电设备，并对辅助供电系统的结构原理进行了介绍。
A rough neural network - based approach to determining the main airways affecting the stability of airflow in mine ventilation is put forward.
提出基于粗神经网络确定影响矿内通风风流稳定性主要风路的方法。
The main function for the performance of the carbon monoxide diffusion barriers, medium degree of airway obstruction and (or) restrictive ventilation abnormalities.
肺功能主要表现为一氧化碳弥散障碍、中等度气道阻塞和(或)限制性通气异常。
Based on the "Security Rules for Coal Mine", the ventilation resistance and main ventilator behavior in Xing-long Mine is measured.
前言：根据《煤矿安全规程》规定，对兴隆煤矿进行了通风阻力测定和主通风机装置性能测试。
Form: Vertical musical instrument type and airtight ventilation structure. The main control cabinet and the operation table are set up separately.
形式：自立型琴式密闭通风构造。主控柜和操作台分设。
Mine local ventilation facilities failure is one of the main reason which leads to the accident of gas explosions in heading face.
矿井局部通风设备故障是导致掘进工作面较易发生瓦斯爆炸事故的主要理由之一。
The relative error of the ventilation resistance measured on the main measuring route was 1.94% and the accuracy could meet the requirement.
经计算主测定路线上的通风阻力测定相对误差为1.94%，其精度符合要求。
This paper describes the main problems of ventilation systems in large coal mines and it puts forwards a feasible transformation proposal.
本文论述了大型矿井通风系统存在的主要问题及可行的改造方案。
Natural ventilation and mechanical ventilation are two main ways for the greenhouse cooling.
温室的夏季降温主要有自然通风和机械通风两种方式。
In the main rooms, the automatic ventilation system has been equipped with adjustable volume flow control units to be able to use the ventilation system on demand and therefore saving on energy.
在主要的房间里，自动通风系统安装了可调节风量控制装置，使通风系统能够根据要求使用，从而节省能源。
The accident started with a gas leak that let gas pour into the main tunnel and trigger an explosion due to poor ventilation.
事故由瓦斯泄露引起，在通风不畅的情形下，瓦斯涌入主要通道，引发了爆炸。
The accident started with a gas leak that let gas pour into the main tunnel and trigger an explosion due to poor ventilation.
事故由瓦斯泄露引起，在通风不畅的情形下，瓦斯涌入主要通道，引发了爆炸。
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