It is the gliding irrotational wave pair, not the longitudinal wave beam itself that excites longitudinal wave in mud to generate signal.
激发出泥浆纵波而使接收器获得讯号的是滑行集散波,纵波声束并不直接激发泥浆纵波。
Model verifications are given through comparisons between the calculated and the measured bed mud mass transport velocities as well as the rate of decay of water wave heights.
模型验证是通过计算水波波高衰减率和底床软泥体输移速度,并与有关的实验测量数据进行比较。
Model verifications are given through comparisons between the calculated and the measured bed mud mass transport velocities as well as the rate of decay of surface wave heights.
模型验证是通过计算水波波高衰减率和底床软泥体输移速度,并与有关的实验测量数据进行比较。
When mud cake is thick, formation permeability and shear wave slowness evaluated from the attenuation of the amplitude of Stoneley wave are wrong.
当泥饼层较厚时,用斯通利波幅度衰减估算的地层渗透率及提取的横波时差是错误的结果。
They should also meet the requirements in preventing and avoiding disasters caused by mountainside landslide rock collapse mud-rock flow tropical heat wave fire etc.
并符合对山体滑坡、岩崩、泥石流、热带气旋、火灾等灾害的防灾避险安全要求。
They should also meet the requirements in preventing and avoiding disasters caused by mountainside landslide rock collapse mud-rock flow tropical heat wave fire etc.
并符合对山体滑坡、岩崩、泥石流、热带气旋、火灾等灾害的防灾避险安全要求。
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