常見(jiàn)例句雙語(yǔ)例句This instrument has been developed to measure bed levels in hydraulic models, movable beds of beaches, harbours, estuaries etc.近來(lái)，海岸、港灣、河口等模型已進(jìn)行了渾水的動(dòng)床試驗(yàn)，河床沖淤地形是必不可少的測(cè)量項(xiàng)目。 返回 movable beds