| 1. | A shoal of porpoises are well on the feed .
一群海豚正在吞食。
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| 2. | People arrived in shoals .
人们成群结队地到来。
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| 3. | They have had to maneuver the ship to avoid unforeseen shoals and shallows .
他们必须设法避开无法预见的暗礁和浅滩。
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| 4. | It is a comparatively simple step from locating the sea bottom to locating a shoal of fish .
从测量海底深度到探测海底鱼群只是较为简易的一步。
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| 5. | During periods of elevation the area of the land and of the adjoining shoal parts of the sea will be increased .
在上升的时期，陆地和附近浅滩的面积都将扩大。
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| 6. | To the left of us there was the long uninterrupted shoal and to the right a high, steep bank heavily overgrown with bushes .
我们的左边，躺着那条连绵不断的长沙洲，而我们的右边，是一条高峻陡峭的河岸，上面厚厚地长满了一层野荆丛棘。
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| 7. | It is now possible not only to locate a shoal but to tell if it is herring , cod , or other well-known fish , by the pattern of its echo .
不仅有可能测定鱼群的位置，而且可以根据鱼群回声的图象区分出鲱鱼，鳕鱼或其他人们所熟悉的鱼。
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| 8. | Shoals caused by tidal deltas on the sea-ward side of the tidal passes are indicated by the position of the breakers, which occur some distance offshore .
可以用出现在滨外宾外若干距离上的拍岸浪来判明那些在潮汐水道面向海盆一侧的潮汐三角洲形成的浅滩。
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| 9. | The ship struck a shoal and brought up all standing
那艘船撞上了浅滩突然停住。
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| 10. | We can refit at sea . here , where it shoals
我们可以在海上整修，就在这儿，浅滩上
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