冲坑 meaning in English
centre dot
centre punch
Examples
- Choice of slit - type bucket parameters and estimation of scour hole depth
一级直线边墙窄缝挑坎参数选择与冲坑深度估计 - Scouring depth before the permeable pile dike reaches 20 m and the value increase with the upstream angle and flow rate of the coming flow
桩前冲坑最大深度可接近20m ，入流角和流量越大，冲坑越深。 - The relationship between the air concentration and the scour depth can be expressed as an exponential function . aeration does not affect the shape of scour hole
掺气浓度c _对冲坑深度的影响，可表达为掺气浓度与冲坑无量纲深度的幂函数关系。 - According to the similar rule , a movable bed model for downstream channel and the particle size distribution of the model silt in the channel and the scour hole are designed . a theoretical method of size distribution in the scour hole is devised
根据模型律设计了太平湾尾水渠动床模型，分别确定了河床中和冲刷坑中模型沙的配比，并对冲坑中的床质级配进行了理论推导。 - The formation of the scoured pits is related with such factors as the unstable flow velocity and the unstable flow state caused by the circumfluence in the cross direction , the upstream circumfluence and the circle flow around the embankment
冲刷坑的形成与横向环流、上游回流和绕流丁坝造成流速及流态不均匀等因素有关；根石走失与根石在水中的稳定性和河床性质及坝脚附近冲坑有关。