bed of passage 过渡层
The fear was that when this quantity of water hit the bottom, it would detach the ice from the bed on which it rested and lubricate its passage to the sea.
人们曾经担心的是当如此巨量的水撞击底部时，可能导致冰层与其底部基质的隔离，并发生向海洋的滑动。
They stood in the passage talking about it in whispers long after she had gone to bed.
在她入睡以后很久，他们还站在走廊里小声议论着。
Based on local hydrological and sediment data and river bed processes analysis, it is reasonable to select the North passage of South branch as the future deep water channel.
根据对水文泥沙条件及河床演变的分析，选择南港北槽开辟深水航道是合理的。
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