When used to pin down abstract concepts or unusual design details , design by metaphor or simile bridges a major gap of understanding 在涉及到抽象概念或难以理解的设计细节时，利用明喻或暗喻可以避免设计者与客户之间产生大的理解分歧。
In cases of early failure of the driving belt , the most important thing is to pin down its reason in order to solve the problem . 1 . invalidation of tension 当一条沟糟皮带poly - v在一台蛇形驱动装置上断裂时，它就相当于三条常见的v形带同时断裂。
" jessica , " said her mother , who was also a study in what good clothing can do for age , " push that pin down in your tie - it s coming up . “杰西卡， ”她母亲说，她的穿着也可以帮助人们研究漂亮的服装能怎样美化上了年纪的人。 “把领带夹别牢快脱出来了。 ”
While it has long been understood from family studies that obesity is heavily influenced by genetics , scientists have struggled to pin down individual genes that are involved 家系研究很早就发现肥胖受遗传影响很大，科学家们一直在努力确定相关的某个基因。
Charisma is hard to pin down , we all have a sense of someone having it but it is difficult to explain why , said professor wiseman “魅力是一个难以确切定义的事情，对某个人是否有魅力，我们大家都会有感觉，但是却很难解释他为什么有魅力， ”理查德威斯曼教授说道。
To catch and pin down in wordsthat is , to describe directly the life , not only of humanity , but even of a single people , appears to be impossible 然而，人们却不能直接地去探索，并通过语言文字详尽说明不仅描述人类的生活，而且尽述一个民族的生活，也是不可能的。
We have been trying to pin down by experiments what people mean by these expressions in specific contexts , and how the meanings change with age 我们一直在试图通过实验说明，在各种特定的语言环境下人们使用上述词语表达了什么样的意义，这些意义怎样随年龄的不同而变化。
The two of us proposed that observations of more high - redshift supernovae could provide definitive proof and pin down the transition from slowdown to speedup 我们曾经提出，只要观测更多高红移的超新星，就能提供更明确的证据，并精确量测出宇宙由减速过渡到加速的整个过程。
As tantalising as the detection is , more analysis is needed to pin down the source of the gas , with geothermal effects and comet impacts still a possibility 但不管这发现多么引人，鉴于地热效应和彗星撞击也是甲烷产生的可能性，所以在气体来源最终被确定前，还有很多的分析工作要做。
Although they were physically intimate on a regular basis , harriet was increasingly conscious of inchoate desires , of unappeased yearnings , the source of which she could not quite pin down 尽管他们常有身体上的的亲昵行为，但哈莉特还是隐约感到有种愈来愈强、扼制不住的欲望没有得到满足。
