本文中的示例代码与数据库结构紧密耦合。
The example code in this article is strongly coupled to the database structure.
聚集体结构紧密并且形状接近于球形。
该设备结构紧密,除了使用一款回热式透平推进器以外,与MP系列泵很相似。
The MPT Series features close-coupled construction similar to the MP Series, but uses a regenerative turbine vane impeller.
Now DNA is a double helix and I've only shown you one part of the helix, right? I've shown you one upright strut and a base hanging off of it, but it forms a double helix because complementary strands of DNA strongly associate with one another and that's a very stable structure.
NA是双螺旋,我只是给你们讲了螺旋的一边,我给你们演示,一条链的支柱及碱基团,但其能构成双螺旋,是因为DNA是完全互补的两条链,彼此之间结合紧密,结构异常稳定
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