He has a very retentive memory.
他的记忆力非常好。
The new material invented is retentive to water.
新开发的材料有很好的保水性。
If you have a retentive memory, you are able to remember things very well.
如果你记性好，你就能很好地记住事情。
Very different Retentive force was found in different designed retainers.
不同的磁性固位体设计形式所产生的固位力不同。
Very different Retentive force was found in different designed retainers.
不同的磁性固位体设计形式所产生的固位力不同。
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