In annular flow the penetratingeffect of stream A makes the void fraction same besides a baffle.
在环状流下，A流路的贯通作用使折流板前后对应区域的含气率基本一致；
2
For partly penetrating well, in particular, when the horizontal well length is shorter, partly penetratingeffect of the decision is an important factor for deciding productivity.
对于部分穿透水平井，尤其当井筒长度较短时，部分穿透效应也是决定产能的一个重要因素。
3
The water penetrating into concrete may bring in a lot of harmful ions(for example chlorine ion), which has a harmful effect on concrete property and may brings into reinforcement in concrete to rust.