负气压 meaning in English

negative air pressure

Room pressurization test . this test is to verify that there is a proper amount of positive / negative room air pressure
洁净室压力测试。该项试验用于检验洁净室正/负气压的合适性。
Modifying the hvac systems in hospitals to maintain negative pressure and optimise fresh air intake in sars wards and selected operating theatres
改装各医院的空调系统，以维持负气压，并尽量增加沙士病房及某些手术室的新鲜空气供应；
The works would include creation of negative pressure gradient in wards , provision of 100 per cent fresh air supply and dilution of bioload in sufficient air change rates , installation of high efficiency particulate air filters to filter out droplets and aerosols , and the provision of en - suite toiletshower facilities in ward cubicles where building structure and existing building services installations permit
工程将包括在病房内制造负气压坡度；以足够的换气率，供应百分之百的新鲜空气以及稀释空气中的微生物含量；安装高效能空气粒子过滤器，过滤飞沫和喷雾；以及在建筑结构和现有屋宇装备许可的情况下，在病房单间内提供独立洗手间和淋浴设施。