1·The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
2·It is being named as Flame Moss, most probably due to the growth pattern of the shape of the submersed fronds.
这是被任命为火焰莫斯，最有可能由于增长方式的形状淹没叶状。
3·However, in respect of a vibration acceleration signal, the signal to noise ratio (SNR) is often so small that the periodic impulse component is submersed in its intense background noises.
通常检测的机械振动加速度信号，由于信噪比太低，即使存在周期性的冲击分量也往往被淹没在强的背景噪声之中。