passing loop是什么意思

用法例句

By taking the ventilation scheme of the underground annular driveway of Suzhou railway station as the object of study,the air volume needed both in the normal situation and fire situation was calculated and analyzed.

以苏州火车站地下环形车道的营运通风方案为对象,对正常运营和火灾时的需风量进行计算和分析,并采用计算流体力学方法对车道火灾模式下排烟的有效性进行了模拟研究,确定该车道采用竖井送排式加射流风机进行通风,竖井设在车道的西北和东南两个对角处,有效面积分别为10。