通风

Natural ventilation is the ventilation of a building with outside air without the use of a fan or other mechanical system.

自然通风是不使用风扇和其他机械系统进行室内外气体交换的通风方式。

Plate filter filtration efficiency of G3, the efficiency of filters, air conditioning and ventilation systems commonly used in the first level of filtering, also applies to only a filtered air-conditioning and ventilation systems.

板式过滤器的过滤效率有G3，这种效率的过滤器，常用于空调与通风系统的第一级过滤，也适用于只需一级过滤的空调和通风系统。

The calculation of fire prevention is studied using fire net ventilation method in extra-long highway tunnel of Zhongnanshan Mountain where the full jet flow ventilation system is used.

采用火灾网络通风的计算方法，对秦岭终南山特长公路隧道在全射流通风方式下的火灾情况进行计算研究。

Machinable a variety of custom-made machinery and a variety of decorative guard plate, various models of machine screen, thermal network, the ventilation network, filters, filters, filter network, network silencers, oil slurry at the end of net cage on the ground grain depot network engineering and installation of ventilation.

可加工定做各种机械护罩和各种装饰用孔板，各种型号机筛网，散热网，通风网，过滤网，过滤器，滤芯网，消音网，石油泥浆底网，粮库地上笼通风网工程及安装。

The plant ventilation status under different conditions is calculated with steady k-ε turbulence model. Results show that different surface has a different impact on natural ventilation. The ground surface constructed with some good heat-absorbing materials will have an enhanced surface effect. The surface effect is fully put into effect at the maximum outdoor windspeed of 1.5m/s.

在稳态条件下，采用k-ε湍流模型，计算了不同工况下的厂房通风状况，结果表明，不同的地表对自然通风的影响是不同的，厂房内的地面采用吸热性能好的材料构筑，会增强地表效应；地表效应得以充分体现的最大室外风速为1.5m/s。

In this study,computational fluid dynamics is applied to simulate the U-shaped duct aeration.

计算流体力学研究方法的运用可成为机械通风优化设计研究的有效工具，为今后机械通风应用技术的发展提供针对性和实用性的依据。

By the way of integration of the natural draft through skylights and machinery ventilation, the malpractice due to too many fans has been resolved and operation cost has been reduced.

通过以天窗排风为主的自然通风和机械通风相结合的方式，解决屋顶风机过多带来的弊端，降低运行费用。

Operations, should be timely to take away the harmful welding gas, poor ventilation in the cabin or container operations, should be installed ventilation equipment.

作业时，应及时排走焊接中产生的有害气体，在通风不良的舱室或容器内作业时，应安装通风设备。

This study proposed the results of simulation and suggested the design of ventilation system in a residential quarantine period space.

本研究所提出之一般居家隔离空间通风机械设计配置之建议，可提供设计者预测室内流场以便进行合适之通风设计。

It overcomes disadvantages of the qualitative engineering analogy and empirical method of ventilation time. It offers the theoretical basis to construction schedule simulation and construction scheme optimization.(2) The 3-D transient quasi-single phase models and a 3-D two phase flow model are proposed together with k-εequations.

采用数学模型解析的方法得到了定量的施工期通风时间参数，克服了传统分析中通风时间参数依据定性工程类比和经验确定的弊端，为施工仿真和施工方案优化提供了理论基础。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。