ventilation quantity

Improve on algorithm for air quantity distribution of mine ventilation system

矿井通风系统风流控制的改进算法

The flow rate of suspend sash window has almost the same quantity with that of sash window under the same ventilation area.

在通风面积基本相同条件下，利用悬开窗通风时的通风量与利用推拉窗通风时的通风量相差不大。

This paper make out the history, status, development trend and existent problem of ventilation and air condition technology application in underground water power at home and abroad by indexing and checking the related large quantity technology references and engineering analysis firstly.

本论文首先通过检索、查阅大量相关科技文献和工程调研分析，摸清了国内外地下水电站通风空调技术应用的历史、现状、发展动向与存在问题。

Objective To explore the effects of environmental factors such as temperature, relative humidity and ventilation rate on release quantity of formaldehyde in woodiness boards.

目的研究温度、相对湿度、空气交换率等环境条件对木质板材甲醛释放的影响。

The density control of gas and coal dust is done through optimal allotment of the ventilation quantity in the coal mine well.

煤矿井下瓦斯和煤尘的浓度控制是通过煤矿井下通风量的优化分配实现的，是实现煤矿安全生产的关键环节。