Practices have proved that effective gas extraction can improve ventilation management, gas control and reliability of work safety in the mine.
实践证明，通过对矿井瓦斯的有效抽采，可以使矿井的通风管理、瓦斯治理工作稳步提高，矿井安全可靠度增强。
Presents the general situation of the project and the design characteristics of cold and heat sources, water system, ventilation system and smoke control and extraction system.
介绍了该工程的概况和空调冷热源、水系统、通风系统及防排烟系统设计特点。
Presents general principles and forms for the design and selection of air-conditioning and ventilation system, involving kitchen air extraction and spot fresh air supply systems.
阐述了宾馆酒店厨房通风空调设计的一般原则及通风系统的采用形式，包括排风系统、岗位新风的设计。
Discusses the feasibility of natural smoke extraction and the parameter in detail and the conditions of natural ventilation.
讨论了自然排烟的可行性及相关参数的量化和自然进风的条件。
Other USES can be for floors, ventilation and smoke extraction ducts, cable trays and sheathing applications.
其他的可以用在地板、通风和排烟管道，线缆桥架和覆盖物。
The same set of system (double speed) is used for usual ventilation and smoke extraction in case of fire accident, so the air intake is set as normally open.
平时通风和火灾时排烟共用一套系统(双速)，故风口设置为常开型。
Widely used in machinery and equipment facilities, kitchen fume extraction, the use of the ventilation of factories and enterprises and public places.
广泛应用于机械设备的配套、厨房抽油烟、厂矿企业及公共场所等通风换气之用。
Widely used in machinery and equipment facilities, kitchen fume extraction, the use of the ventilation of factories and enterprises and public places.
广泛应用于机械设备的配套、厨房抽油烟、厂矿企业及公共场所等通风换气之用。
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