The main contents and conclusions are as follows : 1 . the dynamic pressure on the original riverbed and the scour hole are measured . the results show that the characteristics of dynamic pressure in the scour hole are the same as that on the original riverbed 表明在基岩冲刷过程中以及冲坑稳定后,射流冲击区的脉动压强与冲坑形成前一样,都是以低频大振幅为主,说明在冲刷坑形成后,射流冲击区水流与无冲坑时一样,都是大尺度涡不断破碎和小尺度涡不断生成的过程。
冲击: lash; pound区: H region; H冲击区域: impact zone气流冲击区: impact area of jet伏击区: area of ambush攻击区: flight area截击区: intercept area抛击区: hit and toss station炮击区: gunfire area砰击区: slamming zone轻击区: putting green射击区: field of fire; fring area游击区: a guerrilla area; a guerrilla zone第13轻击区: the 13th green攻击区域: attack area空中射击区: air-to-air gunnery area轻击区,推杆区: putting green射击区域: sector of fire水平射击区: horizontal field of fire预计截击区: predicted intercept area正常射击区: normal zone of fire冲击: 1.(水流等撞击) lash; pound 激流对海岸的冲击 the impact of the swift current against the shore; 海浪冲击着礁石, 飞起像珠子般的水花。 the wave lashed against the rocks, sending up pearly spray.2.(迅猛攻击) charge; assault; dash; flewit 对社会道德观念的冲击 a shock to the sense of a community; 向敌人阵地发起冲击 charge an enemy position3.[力学] shock4.[物理学] ballistic5.[医学] ictus6.[电学] surge7.[机械工程] impact; impigement离开射击区域: clear the firing area冲击,冲击,冲击: break,break,break电子轰击区域熔化: electro-bombardment zone melting