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波纹/波痕(ripple)
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更多 “波纹/波痕(ripple)” 相关考题
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单选题A condition where two currents meet at the downstream end of a middle bar can be determined by a().A
small whirlpoolB
smooth patch of waterC
V-shaped ripple with the point of the V pointing downstreamD
V-shaped ripple with the point of the V pointing upstream
考题
名词解释题波痕指数
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