research的过去式和用法例句
research做动词有研究;调查等意思，那么你知道research的过去式是什么吗?下面跟着学习啦小编一起来学习一下，希望对大家的学习有所帮助!
research的过去式和其他时态：
过去式: researched
过去分词: researched
现在分词: researching
research的用法：
research的用法1：research主要指为了学术上或有创造性的长期认真研究而做的调查或查询,也指为了把已知晓的事实和规律落实到简要的文字上而做的研究,还可指做一般的、无足轻重的调查。
research的用法2：research可用作及物动词,也可用作不及物动词。用作及物动词时接名词或代词作宾语。
research的用法3：research用作不及物动词时后接介词into或on表示“研究”的领域或方向。
research的用法4：research和re-search是两个词,后者意为“再查找”。
research的过去式例句：
1. It is difficult to praise this immaculately researched work too highly.
这项研究工作毫无瑕疵，怎样称赞都不过分。
2. This is an impeccably researched and very readable book.
这本书中的研究缜密透彻，可读性很强。
3. All these issues have been extensively researched in recent years.
近年来，对所有这些问题都作了全面研究。
4. The nuclear industry was required to prove that every operational and safety aspect had been fully researched.
核工业被要求证明其在运营与安全各方面都进行过充分的研究。
5. The region to be researched has been traced out.
要搜索的区域已经划了出来.
6. Our researchis sailing into uncharted waters / seas , ie investigating fieldsthat have not been researched before.
我们的研究工作正深入到从未涉及过的领域.
7. This is an important problem into which too few social scientists have researched.
这是一个极少数社会学家研究过的重要问题.
8. If a subject is too broad, it cannot be easily thoroughly researched.
如果主题太宽泛, 就不容易彻底地研究了.
9. The Petro - derived growthaids used as ammonium bicarbonate fertilizer were researched.
该文对石油助长剂作为碳铵肥料添加剂进行了探讨.
10. Meanwhile, the anti - plaque actives, anti - caries actives and anti - tartar actives are also researched.
同时对抗牙斑活性物 、 抗 龋活性物及 抗 积石活性物进行了研究.
11. Here the output rate automatic control method is researched.
本课题对生产率的自动控制进行了研究.
12. This method is mainly discussed and researched in this paper.
本文主要在这种方法上进行了深入分析和研究.
13. The reordering newsboy problem was researched under the uncertainty circumstances.
研究模糊环境下可追加订购的报童问题.
14. Additionally, some mechanism and numerical relationship should be further researched.
此外, 相关机理和量化关系还有待于深入研究.
15. Has researched the proofs of the differential mid - value theorem.
对微分中值定理的证明进行了研究.
