Which of the following is not a factor which can interfere with the pulse of sound and cause a variation in the depth reading? ____.(1.0)
A.salinity B.temperature C.the hydrostatic pressure D.vessel’s speed正确答案D
Which of the following is not a factor which can interfere with the pulse of sound and cause a variation in the depth reading? ____.(1.0)
A.salinity B.temperature C.the hydrostatic pressure D.vessel’s speed正确答案D
