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- Results also show that main scour hole occurs in front of breakwater head firstly, then deepens gradually and spread out to offshore. 坑洞形成过程系首先在堤头附近发生底床冲刷,然后逐渐加深形成主坑洞,再往外海方向拓展扩大。
- The orthogonal analyses show that level length in bucket and the anti-erosion power of river bed are important factors for controlling scour hole depth. 文中对冲刷坑水深计算式采用正交分析计算表明,戽内水平长度与河床抗冲能力是控制冲刷坑水深的主要因素,在应用时需过细论证,才可获得满意的防冲效果。
- Experiments about the influence of aeration on the dynamic pressure on the bottom of scour hole show,the influence of aeration on the dynamic pressure on the bottom of scour hole is ruleless. 试验研究了掺气对冲坑底部脉动压强的影响,结果表明:无论冲坑深度为多大,坑底脉动压强均方根值沿程分布与不掺气时相比,没有确定性的规律,射流掺气后,冲坑底部的脉动压强有时增加,有时反而减小。 证明了冲刷坑的形成对下游水流流态及坑底脉动压强特性有较大的影响。
- Comparison of scour hole profiles 冲坑剖面形状的比较
- Transverse profiles of the scour hole 冲坑的横向剖面形态
- Advances in Scour Hole Hydraulic Study 冲坑水力学研究进展综述
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- 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
- The river has scour out a passage in the sand. 这条河在沙土中冲出一条水道。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔,以便装一把新锁。
- I gave the dirty floor a good scour. 我把脏地板好好擦了一下。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。
- This rusted pan does not scour easily. 这只生锈的锅不容易擦乾净。
- The child has picked a hole in his new jumper. 孩子的新毛衣上勾了一个洞。
- Stick your hand in and see what's in the hole. 把手伸进去,看看洞里有什么。
- The dog skins through the small hole in the wall. 那条狗勉强钻过小小的墙洞。
- The men in the hole sent up for more equipment. 在洞穴中的人们向上面要求再给他们一些设备。
- The mice have nibbled a hole in the cheese. 老鼠在奶酪上啃出了一个洞。
- I saw a rabbit dive into its hole. 我看见一只兔子钻进洞。
- It took them a lot of time to scour out the pots and pans. 擦干净炊具花费掉他们许多时间。
