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A Doppler speed log indicates speed through the water ______.
A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
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更多 “ A Doppler speed log indicates speed through the water ______.A.at all timesB.in the bottom return modeC.in the volume reverberation modeD.only when there is no current ” 相关考题
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单选题A Doppler speed log indicates speed through the water（）.A
at all timesB
in the bottom return modeC
in the volume reverberation modeD
only when there is no current
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you can take proper and effective action to avoid collisionC
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单选题A Doppler log in the volume reverberation mode indicates（）.A
speed being made goodB
speed through the waterC
the set of the currentD
the depth of the water
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单选题A Doppler log in the bottom return mode indicates the（）.A
velocity of the currentB
bottom characteristicsC
depth of the waterD
speed over the ground
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单选题A Doppler speed log indicates speed over ground（）.A
at all timesB
in the bottom return modeC
in the volume reverberation modeD
only when there is no current
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单选题Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?（）A
Injection pressuresB
Control air supply pressureC
Cooling water flow through after-coolersD
Lube oil temperature
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