Globle valve has three configurations : straightway , oblique and angle type , and straightway type is in most common use , angle type can install outside corner of pipeline ? system , oblique typw with least fluid resistance 截至阀有三种结构形式：直通式，直流式，角式，其中直通式为常用，角式可以安装在管道系统的拐角处，直流式流阻是截至阀中最小的。
For the banquet area , all - air central systems are very common while for the kitchen area , people working there must meet higher air quality regulations due to the type of contaminated air produced by cooking food 餐厅多采用全空气空调系统，厨房采用直流式空调系统。厨房空调系统除全面均匀送风外，还可采用空气淋浴方式向局部工作人员进行局部送风。
The aerated behaviours in cavitation region of high velocity flow through the non - circulating water tunnel are investigated by using the advanced experimental facilities in the hydraulics laboratory at zhejiang university of technology 摘要本文用先进的量测仪器在浙江工业大学水力学实验室直流式水洞中分别对高速水流空化区、空蚀区的掺气特性进行了较为系统的试验研究。
The respiratory infection wards adopt the air conditioning system of fresh air plus dry fan coil units with high residual pressure and high efficiency filter , the outpatient department and the clinical laboratory all adopt independent direct all - fresh air air conditioning system 摘要呼吸道传染病房采用新风加带高效过滤器的高馀压干式风机盘管机组的空调形式，呼吸道门诊、检验科均采用独立设置的直流式全新风空调系统。
