a mechanical system in a building that provides fresh air;

"she was continually adjusting the ventilation"

the provisions of this chapter apply to piping and ventilating system on all types of ships except where otherwise stated.

除另有规定者外，本规定适用各型船舶的管系和舱室通风系统。

the fluid dynamical performances of the ventilating system in roots blower workshop of a chemical plant are analyzed with the method of computational fluid dynamics(cfd).

分析某化工企业罗茨鼓风机房通风系统流体动力学特性，探索了利用cfd方法研究通风系统的方法。

contrast to four kinds of control type in laboratory ventilating system. varidble air volume usage based control (ubc) is the most advanced ventilating system in laboratory design.

对比了四种实验室控制方式的优缺点。变风量适应性控制是目前最先进的实验室通风设计方式。

presents the air conditioning and ventilating system design and its characteristics for the producing area, living quarter and mechanical room of the workshop.

介绍了该厂房生产区、生活服务区及机械室的空调通风与制冷系统的设计及特点。

it was used to simulate the design and the management of energy and ventilating system of fourdrinier dryer sections.

应用该软件对长网纸机干燥部的能量利用与通风系统的合理设计和管理进行了模拟。

presents the ventilating system design of the chemical laboratory. analyses several kinds of local ventilating devices.

本文介绍普通化学实验室通风系统的设计，并对局部排风设备的几种主要型式加以具体分析。

the ventilation in mines is most important assurance for safety production, whereas the operating efficiency of fan ventilator is the decisive factor of ventilating system .

矿井通风是矿山安全生产的重要保证，而通风效果的好坏取决于矿井通风设备中的主扇装置。

automatic ventilating system which has been used in water tunnel supe rcavitating vehicle experiment has been designed and manufactured.

设计并研制了用于航行体超空泡水洞试验的自动充气系统。

the basic principle, characteristic and application of the project of inducting ventilating system is presented with a project example.

结合工程实例，介绍了诱导通风系统的基本原理、特点及在该工程中的应用。

the factors that influence the whole efficiency of ventilating system adopting adjustment to variable air mass flow and friction were investigated.

对采用变流量、变阻力调节式通风系统整体效率的影响因素进行了探讨。