A wind vane on a moving vessel shows ______.A.dead reckoning wind directionB.true wind directionC.apparent wind directionD.estimated wind direction
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英译汉:wind vane
单选题An instrument that indicates wind direction is known as a(n)().A weather vane,wind vane or wind sockB hydrometerC hygrometerD sling psychrometer
名词解释题英译汉:vibration
名词解释题英译汉:grid spikes