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。
2.
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；
3.
In anger and in order to teach him a lesson , wang picks up a pair of scissors and cuts the cloth she has woven for many days . xue bao the servant tries to bring them round , and in the end , the mother and son make up 倚哥在学中被讥为无母之儿，负气回家不听春娥教训，春娥怒断机布，以示其理，又经薛保劝解，母子和好。
4.
They live together and plan to meery soon . one day they have a fight about the date of their wedding and bird ran away from home and never come back . now , tree realized bird is so important to him that nothing is matter 在一次激烈争吵中，小鸟负气离家，从此，就没有再回来，失去小鸟后，树才知道原来珍惜眼前的幸福才是最重要的，后悔莫及的坚持无论如何要还给小鸟一场婚礼
5.
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。
